Combine your VA disability ratings
Enter each of your disability ratings and this calculator combines them the way VA does, under the combined ratings table in 38 CFR §4.25. It shows the step-by-step work, so you can see why several ratings come out to less than their simple sum.
This is an educational tool. It uses the numbers you enter, not your actual decision. For the arithmetic on your real conditions, including the bilateral factor where paired limbs are rated, decode your letter below.
How VA combines ratings
VA starts from a whole, healthy person at 100 percent efficiency. Ratings are combined most severe first, and each new rating applies only to the efficiency that earlier ratings left, not to the full 100. After every rating is combined, the single figure is rounded to the nearest 10, once, at the end. That is why 50 percent and 30 percent combine to 70, and why 60, 40, and 20 come to 80 rather than 120.
For a fuller walkthrough, see the VA math, or look up two ratings in the VA combined ratings table. To see which programs a combined rating may open up, see VA disability benefits by rating.
Embed the combined-rating calculator
Run a VSO chapter, a county veteran office, or a site that helps veterans? Paste this one line to put the calculator on your own page. It stays free, needs no account, and shows the same step-by-step 38 CFR §4.25 math.
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src="https://understandmyrating.com/embed/combined-rating"
title="VA combined-rating calculator by UnderstandMyRating"
width="100%"
height="760"
loading="lazy"
style="border:1px solid #e5e5e5;border-radius:16px;max-width:720px"
></iframe>Common rating combinations
Each page below works through one combination step by step, with the monthly compensation at the result and what that rating may open up.
- 90% and 90% = 100%
- 90% and 80% = 100%
- 90% and 70% = 100%
- 90% and 60% = 100%
- 90% and 50% = 100%
- 90% and 40% = 90%
- 90% and 30% = 90%
- 90% and 20% = 90%
- 90% and 10% = 90%
- 80% and 80% = 100%
- 80% and 70% = 90%
- 80% and 60% = 90%
- 80% and 50% = 90%
- 80% and 40% = 90%
- 80% and 30% = 90%
- 80% and 20% = 80%
- 80% and 10% = 80%
- 70% and 70% = 90%
- 70% and 60% = 90%
- 70% and 50% = 90%
- 70% and 40% = 80%
- 70% and 30% = 80%
- 70% and 20% = 80%
- 70% and 10% = 70%
- 60% and 60% = 80%
- 60% and 50% = 80%
- 60% and 40% = 80%
- 60% and 30% = 70%
- 60% and 20% = 70%
- 60% and 10% = 60%
- 50% and 50% = 80%
- 50% and 40% = 70%
- 50% and 30% = 70%
- 50% and 20% = 60%
- 50% and 10% = 60%
- 40% and 40% = 60%
- 40% and 30% = 60%
- 40% and 20% = 50%
- 40% and 10% = 50%
- 30% and 30% = 50%
- 30% and 20% = 40%
- 30% and 10% = 40%
- 20% and 20% = 40%
- 20% and 10% = 30%
- 10% and 10% = 20%
- 70%, 50% and 30% = 90%
- 70%, 30% and 10% = 80%
- 70%, 20% and 10% = 80%
- 60%, 40% and 20% = 80%
- 60%, 30% and 10% = 80%
- 50%, 30% and 20% = 70%
- 50%, 30% and 10% = 70%
- 50%, 20% and 10% = 60%
- 40%, 30% and 20% = 70%
- 40%, 30% and 10% = 60%
- 40%, 20% and 10% = 60%
- 30%, 20% and 10% = 50%
- 30%, 10% and 10% = 40%
- 20%, 10% and 10% = 40%
- 10%, 10% and 10% = 30%