Personal Development

Fitness & Lifestyle Calculators

Professional tools for personal development and wellness optimization. Master productivity, achieve athletic goals, practice stewardship, and optimize your life with science-backed calculations and personalized insights trusted by thousands worldwide.

20
Lifestyle Tools
46.2k+
Monthly Uses
4.9/5
User Rating
100%
Free Access

Optimize by Category

Organized by life area for focused personal development

Fashion
1 tool
Suit sizing and style calculators
Maternal Health
1 tool
Breastfeeding and maternal nutrition tools
Fitness
1 tool
Body composition and fitness goal tools
Relationship
2 tools
Age gap and relationship health analysis tools
Work-Life
2 tools
Productivity and time management tools
Nutrition
3 tools
Restaurant nutrition and macro tracking
Branded Food
1 tool
Qdoba nutrition and calorie tracking
Athletic
2 tools
Sports performance and fitness goals
Financial
1 tool
Charitable giving and stewardship
Learning
1 tool
Educational and learning optimization
Spirituality
4 tools
Astrology, numerology, and spiritual timing tools
Astrology
1 tool
Juno sign and relationship astrology tools
Hobbies
1 tool
Equine genetics and hobby calculators
Health
1 tool
Personal health and wellness tools

Most Popular Tools

Our most-used calculators for fitness and lifestyle optimization

Alcohol
New
ABV Calculator
Calculate alcohol by volume, calories, and standard drinks for brewing and beverage analysis. Includes ABV, ABW, and nutritional calculations.
Use Calculator
Military Fitness
New
ACFT Score Calculator
Calculate your Army Combat Fitness Test score and performance analysis. Includes all six ACFT events with official Army scoring standards.
Use Calculator
Relationship
New
Age Gap Calculator
Calculate age differences, compatibility, and relationship analysis. Includes social acceptability and relationship guidance.
Use Calculator
Spirituality
New
Angel Numbers Calculator
Calculate angel number meanings, spiritual messages, and divine guidance. Includes numerology analysis and spiritual interpretation.
Use Calculator
Military Fitness
New
Army ACFT Calculator
Calculate Army Combat Fitness Test scores and performance analysis. Includes all six ACFT events with official Army scoring standards.
Use Calculator
Military Fitness
New
USMC CFT Calculator
Calculate your USMC Combat Fitness Test score with official Marine Corps standards. Includes all three CFT events with performance analysis and training recommendations.
Use Calculator
Military Fitness
New
CFT Calculator
Calculate your Combat Fitness Test score and performance analysis. Includes all three CFT events with official Marine Corps scoring standards.
Use Calculator
Astrology
New
Composite Chart Calculator
Calculate composite chart positions and relationship compatibility. Includes astrology analysis and relationship insights.
Use Calculator
Branded Food
New
Subway Nutrition Calculator
Calculate Subway sandwich nutrition, calories, and health scores. Includes comprehensive nutrition analysis and health recommendations.
Use Calculator
Spirituality
New
Tarot Combination Calculator
Calculate tarot card combinations, meanings, and spiritual guidance. Includes divination analysis and spiritual insights.
Use Calculator
Spirituality
4.1k+ uses
Zodiacal Releasing Calculator
Calculate life periods and timing with ancient Hellenistic astrology. Discover major themes, transitions, and peak moments.
Use Calculator
Fashion
3.9k+ uses
Suit Size Calculator
Find your perfect suit size based on measurements with jacket, pant, and shirt sizing plus brand comparisons.
Use Calculator
Spirituality
3.7k+ uses
Karmic Debt Calculator
Discover karmic debt numbers in your numerology chart with spiritual lessons, past life insights, and soul growth guidance.
Use Calculator
Hobbies
3.5k+ uses
Horse Color Calculator
Predict foal coat colors based on parent genetics with Extension and Agouti gene analysis and probability breakdown.
Use Calculator
Athletic
3.3k+ uses
DOTS Calculator
Calculate your powerlifting DOTS score to compare strength across weight classes with official IPF formula and rankings.
Use Calculator
Athletic
New
Wilks Calculator
Calculate your powerlifting Wilks score to compare strength across weight classes with official Wilks formula. Historical standard (1994-2020).
Use Calculator
Spirituality
3.1k+ uses
Dominant Planet Calculator
Discover your ruling planet and astrological influence with personality traits, career paths, and cosmic insights.
Use Calculator
Relationship
2.9k+ uses
Relationship Health Calculator
Assess relationship quality through trust, communication, and commitment analysis with research-backed recommendations.
Use Calculator
Maternal Health
2.7k+ uses
Breastfeeding Calorie Calculator
Calculate daily calorie needs, macros, and hydration for nursing mothers with personalized nutrition recommendations.
Use Calculator
Fitness
2.5k+ uses
Body Recomposition Calculator
Calculate body recomp plan with precise macros, calories, and timeline for losing fat while building muscle simultaneously.
Use Calculator
Fitness
New
FFMI Calculator
Calculate your Fat-Free Mass Index and muscle mass assessment. Includes standard and adjusted FFMI with percentile rankings and training recommendations.
Use Calculator
Fitness
New
Lean Body Mass Calculator
Calculate lean body mass using Boer, James, and Hume formulas. Includes body fat percentage, ideal LBM, and body composition analysis.
Use Calculator
Relationship
2.3k+ uses
Age Difference Calculator
Calculate age gaps in relationships with social acceptability analysis, famous couple comparisons, and research-backed insights.
Use Calculator
Age
New
Chronological Age Calculator
Calculate exact chronological age in years, months, and days from birth date. Includes life stage analysis, next birthday, and age at any date.
Use Calculator
Age
New
Korean Age Calculator
Calculate your age in Korean age system and international age. Korean age is always 1-2 years older than international age. Everyone ages on January 1st.
Use Calculator
Work-Life
2.1k+ uses
Productivity Calculator
Calculate work efficiency, focus ratio, and time management optimization. Analyze task completion rates with personalized recommendations.
Use Calculator
Nutrition
1.9k+ uses
Chipotle Macro Calculator
Calculate macros and calories for Chipotle bowls, burritos, and tacos. Track protein, carbs, and fats for fitness goals and meal planning.
Use Calculator
Nutrition
New
Starbucks Drink Calorie Calculator
Calculate calories and nutrition for Starbucks drinks. Includes all sizes, milk options, syrups, and customizations with complete nutrition breakdown.
Use Calculator
Athletic
1.8k+ uses
Dunk Calculator
Calculate basketball dunking requirements and vertical jump training goals. Analyze height, reach, and athletic performance metrics.
Use Calculator
Fitness
New
Treadmill Pace Calculator
Calculate running pace, speed, and equivalent effort with incline adjustments. Convert between pace and speed for treadmill training.
Use Calculator
Health & Wellness
New
Water Fast Calculator
Calculate water fasting duration, estimated weight loss, and hydration needs. Track ketosis status and metabolic rate during fasting.
Use Calculator
Financial
1.5k+ uses
Tithe Calculator
Calculate charitable giving amounts and tithing based on income frequency. Plan faithful stewardship with tax optimization.
Use Calculator
Learning
1.4k+ uses
Audiobook Speed Calculator
Calculate optimal playback speeds and time savings for audiobook listening. Maximize learning efficiency with speed analysis.
Use Calculator
Work-Life
1.3k+ uses
PTO Calculator
Calculate paid time off accrual and plan your vacation days effectively. Track vacation balance and optimize time off planning.
Use Calculator
Travel
New
Jet Lag Calculator
Calculate jet lag severity, recovery time, and get personalized strategies to minimize jet lag. Includes time zone analysis and sleep recommendations.
Use Calculator
Spirituality
1.2k+ uses
Transit Chart Calculator
Calculate astrological transit charts and planetary influences on your natal chart. Detailed interpretations and timing guidance.
Use Calculator
Health
1.1k+ uses
Condom Size Calculator
Calculate proper condom size based on measurements. Find your ideal fit with nominal width guide and brand recommendations.
Use Calculator
Nutrition
1.0k+ uses
Dunkin Nutrition Calculator
Calculate calories, macros, sugar, and caffeine for Dunkin' coffee, donuts, and breakfast items with complete nutrition facts.
Use Calculator
Nutrition
950+ uses
Wendys Nutrition Calculator
Calculate calories, protein, and macros for Wendy's burgers, chicken, and sides with detailed nutritional breakdown.
Use Calculator
Astrology
New
Juno Sign Calculator
Calculate your Juno sign and relationship insights with astrology analysis. Discover soulmate indicators, compatibility factors, and relationship timing.
Use Calculator
Branded Food
New
Qdoba Calorie Calculator
Calculate calories and nutrition for Qdoba meals with health scores. Track macros, protein, carbs, and get personalized nutrition recommendations.
Use Calculator

Why Choose Our Personal Development Tools?

Trusted by fitness enthusiasts, professionals, and goal-oriented individuals worldwide

Evidence-Based Methods

All calculations based on established research in productivity, athletics, and personal development

Goal Achievement Focused | thecalcs

Tools designed to help you track progress and achieve personal fitness and lifestyle goals

Personalized Insights | thecalcs

Detailed analysis and recommendations tailored to your individual metrics and objectives

All Fitness & Lifestyle Tools

Complete collection of calculators for personal development and wellness

ABV Calculator
Popular
Alcohol
New
Calculate alcohol by volume, calories, and standard drinks for brewing and beverage analysis. Includes ABV, ABW, and nutritional calculations.
Open Calculator
ACFT Score Calculator
Popular
Military Fitness
New
Calculate your Army Combat Fitness Test score and performance analysis. Includes all six ACFT events with official Army scoring standards.
Open Calculator
Age Gap Calculator
Popular
Relationship
New
Calculate age differences, compatibility, and relationship analysis. Includes social acceptability and relationship guidance.
Open Calculator
Angel Numbers Calculator
Popular
Spirituality
New
Calculate angel number meanings, spiritual messages, and divine guidance. Includes numerology analysis and spiritual interpretation.
Open Calculator
Army ACFT Calculator
Popular
Military Fitness
New
Calculate Army Combat Fitness Test scores and performance analysis. Includes all six ACFT events with official Army scoring standards.
Open Calculator
USMC CFT Calculator
Popular
Military Fitness
New
Calculate your USMC Combat Fitness Test score with official Marine Corps standards. Includes all three CFT events with performance analysis and training recommendations.
Open Calculator
CFT Calculator
Popular
Military Fitness
New
Calculate your Combat Fitness Test score and performance analysis. Includes all three CFT events with official Marine Corps scoring standards.
Open Calculator
Composite Chart Calculator
Popular
Astrology
New
Calculate composite chart positions and relationship compatibility. Includes astrology analysis and relationship insights.
Open Calculator
Subway Nutrition Calculator
Popular
Branded Food
New
Calculate Subway sandwich nutrition, calories, and health scores. Includes comprehensive nutrition analysis and health recommendations.
Open Calculator
Tarot Combination Calculator
Popular
Spirituality
New
Calculate tarot card combinations, meanings, and spiritual guidance. Includes divination analysis and spiritual insights.
Open Calculator
Zodiacal Releasing Calculator
Popular
Spirituality
4.1k+ uses
Calculate life periods and timing with ancient Hellenistic astrology. Discover major themes, transitions, and peak moments.
Open Calculator
Suit Size Calculator
Popular
Fashion
3.9k+ uses
Find your perfect suit size based on measurements with jacket, pant, and shirt sizing plus brand comparisons.
Open Calculator
Karmic Debt Calculator
Popular
Spirituality
3.7k+ uses
Discover karmic debt numbers in your numerology chart with spiritual lessons, past life insights, and soul growth guidance.
Open Calculator
Horse Color Calculator
Popular
Hobbies
3.5k+ uses
Predict foal coat colors based on parent genetics with Extension and Agouti gene analysis and probability breakdown.
Open Calculator
DOTS Calculator
Popular
Athletic
3.3k+ uses
Calculate your powerlifting DOTS score to compare strength across weight classes with official IPF formula and rankings.
Open Calculator
Wilks Calculator
Popular
Athletic
New
Calculate your powerlifting Wilks score to compare strength across weight classes with official Wilks formula. Historical standard (1994-2020).
Open Calculator
Dominant Planet Calculator
Popular
Spirituality
3.1k+ uses
Discover your ruling planet and astrological influence with personality traits, career paths, and cosmic insights.
Open Calculator
Relationship Health Calculator
Popular
Relationship
2.9k+ uses
Assess relationship quality through trust, communication, and commitment analysis with research-backed recommendations.
Open Calculator
Breastfeeding Calorie Calculator
Popular
Maternal Health
2.7k+ uses
Calculate daily calorie needs, macros, and hydration for nursing mothers with personalized nutrition recommendations.
Open Calculator
Body Recomposition Calculator
Popular
Fitness
2.5k+ uses
Calculate body recomp plan with precise macros, calories, and timeline for losing fat while building muscle simultaneously.
Open Calculator
FFMI Calculator
Popular
Fitness
New
Calculate your Fat-Free Mass Index and muscle mass assessment. Includes standard and adjusted FFMI with percentile rankings and training recommendations.
Open Calculator
Lean Body Mass Calculator
Popular
Fitness
New
Calculate lean body mass using Boer, James, and Hume formulas. Includes body fat percentage, ideal LBM, and body composition analysis.
Open Calculator
Age Difference Calculator
Popular
Relationship
2.3k+ uses
Calculate age gaps in relationships with social acceptability analysis, famous couple comparisons, and research-backed insights.
Open Calculator
Chronological Age Calculator
Popular
Age
New
Calculate exact chronological age in years, months, and days from birth date. Includes life stage analysis, next birthday, and age at any date.
Open Calculator
Korean Age Calculator
Popular
Age
New
Calculate your age in Korean age system and international age. Korean age is always 1-2 years older than international age. Everyone ages on January 1st.
Open Calculator
Productivity Calculator
Popular
Work-Life
2.1k+ uses
Calculate work efficiency, focus ratio, and time management optimization. Analyze task completion rates with personalized recommendations.
Open Calculator
Chipotle Macro Calculator
Popular
Nutrition
1.9k+ uses
Calculate macros and calories for Chipotle bowls, burritos, and tacos. Track protein, carbs, and fats for fitness goals and meal planning.
Open Calculator
Starbucks Drink Calorie Calculator
Popular
Nutrition
New
Calculate calories and nutrition for Starbucks drinks. Includes all sizes, milk options, syrups, and customizations with complete nutrition breakdown.
Open Calculator
Dunk Calculator
Popular
Athletic
1.8k+ uses
Calculate basketball dunking requirements and vertical jump training goals. Analyze height, reach, and athletic performance metrics.
Open Calculator
Treadmill Pace Calculator
Popular
Fitness
New
Calculate running pace, speed, and equivalent effort with incline adjustments. Convert between pace and speed for treadmill training.
Open Calculator
Water Fast Calculator
Popular
Health & Wellness
New
Calculate water fasting duration, estimated weight loss, and hydration needs. Track ketosis status and metabolic rate during fasting.
Open Calculator
Tithe Calculator
Popular
Financial
1.5k+ uses
Calculate charitable giving amounts and tithing based on income frequency. Plan faithful stewardship with tax optimization.
Open Calculator
Audiobook Speed Calculator
Popular
Learning
1.4k+ uses
Calculate optimal playback speeds and time savings for audiobook listening. Maximize learning efficiency with speed analysis.
Open Calculator
PTO Calculator
Popular
Work-Life
1.3k+ uses
Calculate paid time off accrual and plan your vacation days effectively. Track vacation balance and optimize time off planning.
Open Calculator
Jet Lag Calculator
Popular
Travel
New
Calculate jet lag severity, recovery time, and get personalized strategies to minimize jet lag. Includes time zone analysis and sleep recommendations.
Open Calculator
Transit Chart Calculator
Popular
Spirituality
1.2k+ uses
Calculate astrological transit charts and planetary influences on your natal chart. Detailed interpretations and timing guidance.
Open Calculator
Condom Size Calculator
Popular
Health
1.1k+ uses
Calculate proper condom size based on measurements. Find your ideal fit with nominal width guide and brand recommendations.
Open Calculator
Dunkin Nutrition Calculator
Popular
Nutrition
1.0k+ uses
Calculate calories, macros, sugar, and caffeine for Dunkin' coffee, donuts, and breakfast items with complete nutrition facts.
Open Calculator
Wendys Nutrition Calculator
Popular
Nutrition
950+ uses
Calculate calories, protein, and macros for Wendy's burgers, chicken, and sides with detailed nutritional breakdown.
Open Calculator
Juno Sign Calculator
Popular
Astrology
New
Calculate your Juno sign and relationship insights with astrology analysis. Discover soulmate indicators, compatibility factors, and relationship timing.
Open Calculator
Qdoba Calorie Calculator
Popular
Branded Food
New
Calculate calories and nutrition for Qdoba meals with health scores. Track macros, protein, carbs, and get personalized nutrition recommendations.
Open Calculator

Built for Personal Excellence

Our calculators support your journey toward optimal health, productivity, and life satisfaction

Science-Backed Methods

Tools based on research in sports science, productivity psychology, and behavioral economics

Goal-Oriented Design

Every calculator includes actionable recommendations to help you achieve your personal goals

Proven Results

Used by thousands to improve productivity, achieve fitness goals, and optimize life balance

Need Custom Wellness Calculators?

We create custom calculators for fitness apps, wellness platforms, and personal development companies.