Instant results Accuracy guaranteed Data never leaves your browser AMA Guide 5th Ed compliant
Frequently Asked Questions
This tool helps you combine multiple impairment percentages using the method described on page 604 of the AMA Guides, 5th Edition. It also provides UE → WPI and LE → WPI conversions, saving you time and avoiding manual errors.
Enter two or more impairment percentages.
Click "Calculate."
See the final Combined Value and conversions.
You can add up to 10 values at a time.
These refer to standardized formulas:
• UE to WPI = Upper Extremity × 0.60
• LE to WPI = Lower Extremity × 0.40
These factors follow AMA 5th Edition guidelines.
By default, we round only the final combined value. You can toggle stepwise rounding in the settings to match your specific reporting style or jurisdictional rules.
No account is required for basic use. You can use the calculator up to 5 times per day for free. For unlimited use, just sign up and upgrade to a Premium account.
A message will appear letting you know when your free limit is reached. You'll be invited to upgrade to Premium for unlimited access — your existing results will still be viewable.
Click "Upgrade" in the banner above. All payments are securely handled through Stripe, and access is tied to your login email. You'll get immediate access upon checkout.
Calculations: No calculation data is saved. This tool runs entirely in your browser.
Account Data: If you create an account, only your email address is stored through Firebase Authentication. All payment and subscription data is securely handled by Stripe — we don't store credit card or payment information.
Yes. After calculating, click "Copy Results" to copy the values to your clipboard, or use the "Print" button to generate a printable report.
QME Calculator was built by practicing professionals to simplify impairment calculations. It's designed for physicians, case reviewers, and attorneys working with AMA-based ratings.