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Access our complete collection of 336+ professional calculators. From home design and finance to education, fitness, lifestyle, and specialized applications – all the tools you need in one place.
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Our most popular calculator collections
Size & Spacing
6 toolsHome design and interior spacing calculators for optimal proportions and measurements
Explore CategoryMath & Science
142 toolsEducational mathematics and science calculators for students and professionals
Explore CategoryFinance & Housing
45 toolsProfessional financial calculators for investments, real estate, loans, and personal finance
Explore CategoryHome Services & Cost
24 toolsCost estimation for tree removal, flooring, electrical, and home improvements
Explore CategoryEducation & GPA
14 toolsGPA calculators for educational institutions and academic planning
Explore CategoryFitness & Lifestyle
20 toolsFitness, sports performance, and lifestyle calculators for personal development
Explore CategoryAll Calculator Categories
Complete collection organized by specialty and application
Size & Spacing
Popular6 tools
Home design and interior spacing calculators for optimal proportions and measurements
View All ToolsMath & Science
Popular142 tools
Educational mathematics and science calculators for students and professionals
View All ToolsFinance & Housing
Popular45 tools
Professional financial calculators for investments, real estate, loans, and personal finance
View All ToolsHome Services & Cost
Popular24 tools
Cost estimation for tree removal, flooring, electrical, and home improvements
View All ToolsEducation & GPA
Popular14 tools
GPA calculators for educational institutions and academic planning
General GPA Calculator2.1k+ uses
UCSD GPA Calculator1.8k+ uses
UT GPA Calculator1.6k+ uses
+2 more tools
DIY Outdoors & Hobbies
18 tools
Professional calculators for outdoor projects, pool maintenance, and hobby activities
Pool Salt Calculator2.1k+ uses
Pond Liner Calculator1.8k+ uses
Scope Ring Height1.5k+ uses
+2 more tools
Fitness & Lifestyle
Popular20 tools
Fitness, sports performance, and lifestyle calculators for personal development
Age Difference Calculator2.3k+ uses
Audiobook Speed Calculator1.4k+ uses
Body Recomposition Calculator2.5k+ uses
+17 more tools
Business & Marketing
15 tools
Marketing metrics, SEO tools, and business analytics calculators
Break-Even Sales Calculator1.6k+ uses
Conversion Rate Calculator2.0k+ uses
CPC Calculator1.7k+ uses
+12 more tools
Programming
11 tools
Web development and programming utility calculators
ASCII to Text Calculator1.4k+ uses
Base64 Encode/Decode Calculator1.6k+ uses
Binary to Decimal Calculator1.7k+ uses
+8 more tools
Payroll & Taxes
13 tools
State paycheck and tax calculators for accurate take-home pay
Kansas Paycheck1.6k+ uses
Nevada Paycheck1.4k+ uses
Legal & Compliance
15 tools
Child support, legal deadlines, and compliance calculators
Court Date Calculator1.7k+ uses
Legal Deadline1.5k+ uses
Medical & Health
11 tools
Medical calculations and health metric tools
Blood Pressure MAP1.8k+ uses
HCG Weeks1.4k+ uses
Accessibility & Ergonomics
2 tools
Accessibility and ergonomic calculators for inclusive design and human factors
Draw Length Calculator1.2k+ uses
Ramp Calculator1.0k+ uses
Complete Calculator Directory
Browse all 336+ calculators organized by category
Size & Spacing
6 calculators
Math & Science
142 calculators
Finance & Housing
45 calculators
Home Services & Cost
24 calculators
Education & GPA
14 calculators
DIY Outdoors & Hobbies
18 calculators
Fitness & Lifestyle
20 calculators
Age Difference CalculatorAudiobook Speed CalculatorBody Recomposition CalculatorBreastfeeding Calorie CalculatorChipotle Macro CalculatorCondom Size CalculatorDOTS CalculatorDominant Planet CalculatorDunk CalculatorDunkin Nutrition CalculatorHorse Color CalculatorKarmic Debt CalculatorProductivity CalculatorPTO CalculatorRelationship Health CalculatorSuit Size CalculatorTithe CalculatorTransit Chart CalculatorWendys Nutrition CalculatorZodiacal Releasing CalculatorView all 20 tools →
Business & Marketing
15 calculators
Break-Even Sales CalculatorConversion Rate CalculatorCPC CalculatorCPM CalculatorCTR CalculatorDiscount Percentage CalculatorEnterprise SEO ROI CalculatorFreight Density CalculatorKDP Royalty CalculatorKeyword Density CalculatorMeta Description Length CalculatorSocial Media Engagement CalculatorTitle Tag Length CalculatorTrade Up CalculatorWord Count CalculatorView all 15 tools →
Programming
11 calculators
ASCII to Text CalculatorBase64 Encode/Decode CalculatorBinary to Decimal CalculatorCSS Specificity CalculatorGrid Column Width CalculatorHex to Decimal CalculatorImage Crop Ratio CalculatorJSON Formatter CalculatorRegex Match CalculatorRem to Px CalculatorResponsive Breakpoint CalculatorView all 11 tools →
Payroll & Taxes
13 calculators
Legal & Compliance
15 calculators
Medical & Health
11 calculators
Accessibility & Ergonomics
2 calculators
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Most Popular Tools
Start with our most-used calculators, trusted by thousands
Home Design
2.1k+ uses
TV Wall Mount Height
Education
2.1k+ uses
General GPA Calculator
Finance
2.1k+ uses
Money Market Calculator
Home Services
1.9k+ uses
Concrete Driveway Cost
Education
1.8k+ uses
UCSD GPA Calculator
DIY & Outdoors
2.1k+ uses
Pool Salt Calculator
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