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Free carpal tunnel risk calculator for office workers, developers, and data-entry teams. Model typing/mouse hours, break interval, wrist posture, forceful repetition, and current discomfort for a 0–100 risk score and Low / Moderate / High guidance. Pair with our keyboard tray angle calculator.
Last updated: May 24, 2026
Need whole-arm RSI screening? RSI risk calculator
Risk Score (0-100)
90
Risk Level
High
Suggested Break Interval
20 min
High risk profile. Prioritize ergonomic intervention and evaluate symptoms with a qualified clinician.
Combine this estimate with workstation adjustments and symptom tracking over time.
If numbness or persistent pain appears, seek clinical evaluation promptly.
We can build and embed a custom version of Carpal Tunnel Risk Calculator for your brand and workflow.
Answers: am I at risk for wrist strain from my desk setup, and how often should I break?
Daily keyboard and mouse duration — the largest scalable driver for full-time desk roles.
Non-neutral wrists and high-force keying or clicking add up to 56 points combined at worst tiers.
Long gaps between breaks and existing hand symptoms signal insufficient recovery between loads.
Form defaults: 6 h/day, 40 min between breaks, mild wrist bend, mild discomfort, medium force → 15 + 12 + 15 + 39 + 9 = 90/100, High, break every 20 min.
Risk Score
90
Risk Level
High
Break Target
20 min
Improve to ~30.5 (Low): 3 h, 25 min breaks, neutral wrists, no symptoms, low force.
| Level | Score | Break target | Action |
|---|---|---|---|
| Low | 0–34 | 35 min | Maintain setup; reassess if hours increase |
| Moderate | 35–64 | 25 min | Adjust keyboard tray, mouse, and break cadence within 1–2 weeks |
| High | 65–100 | 20 min | Ergonomic intervention + clinical evaluation if numbness or night symptoms |
| Factor | Low tier | Mid tier | High tier | Notes |
|---|---|---|---|---|
| Wrist posture | 5 | 15 | 28 | Extended/deviated wrists multiply median nerve loading |
| Discomfort today | 12 / 24 / 36 | — | Mild / moderate / high symptom tiers | |
| Forceful repetition | 6 (low) | 15 (med) | 28 (high) | Hard keying, gripping mouse, assembly tasks |
| Daily exposure | hours × 6.5 | — | — | 6 h typing → 39 exposure points |
| Break penalty | 0 if ≤25 min interval | (interval − 25) × 0.6 | — | 40 min breaks → +9 points |
| Scenario | Score | Level |
|---|---|---|
| Form default (6 h, 40 min breaks, mild bend, mild discomfort, medium force) | 90 | High |
| Low-risk remote (3 h, 25 min breaks, neutral, no symptoms, low force) | 30.5 | Low |
| Data entry (7 h, 45 min breaks, mild bend, mild discomfort, medium) | 99.5 | High |
| High-risk CAD/design (8 h, 60 min breaks, extended, moderate pain, high force) | 100 | High |
Median nerve compression in true carpal tunnel syndrome depends on anatomy, health conditions, and sustained wrist loading. This model translates observable desk habits — hours, breaks, posture, force, and symptoms — into a practical prevention score for ergonomics programs and self-assessment.
Score = posture + discomfort + repetition + (hours × 6.5) + max(0, (break min − 25) × 0.6)Cap at 100Bands: <35 Low · 35–64 Moderate · 65+ HighCombine wrist risk scoring with keyboard tray, chair, and reach-zone calculators for a complete desk ergonomics pass.
Explore Accessibility & Ergonomics CalculatorsScore = 5 + 0 + 6 + 19.5 + 0 = 30.5 (Low) — break every 35 minutes. Useful baseline when adding hours later; re-score if discomfort appears.
Share it with teams working on repetitive-strain prevention and ergonomic workstation upgrades.
Suggested hashtags: #Ergonomics #CarpalTunnel #RSI #WorkplaceHealth #Accessibility