VA Combined Rating Calculator
Add your individual disability ratings to see your combined VA rating, estimated monthly compensation, and a step-by-step breakdown of how VA math works.
Disclaimer: This information is for general guidance only and may not reflect recent changes. Always verify with the official source linked below. This is not legal, medical, or financial advice.
Your Rated Disabilities
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Understanding VA Math
The VA does not simply add your disability percentages together. Instead, they use a formula called “combined ratings” or “VA math.”
The idea is that each additional disability is applied to your remaining healthy body, not your whole body. For example, if you have a 50% rating, the VA considers you 50% disabled and 50% healthy. A second 30% rating is applied to that remaining 50%, giving you 15% more (30% of 50%), for a combined total of 65%.
The exact combined value is then rounded to the nearest 10% to get your official VA rating. In the example above, 65% rounds to 70%.
Reference: 38 CFR § 4.25 — Combined Ratings Table