VA Combined Rating CalculatorVA Math, Bilateral Factor & Combined Ratings Table (38 CFR 4.25)
The VA combines ratings by applying each one to your remaining healthy percentage, highest first, adds a 10% bilateral factor for paired limbs and rounds to the nearest 10, so 50% and 30% make 70% and two 50% ratings make 80%. Enter your ratings to see your combined rating, every step of the math and what any new rating would do to it.
Method from 38 CFR 4.25 (Combined Ratings Table) and 38 CFR 4.26 (bilateral factor).
If you add one more rating
How the VA combined rating is calculated
The VA does not add ratings. It treats you as 100% healthy, applies your highest rating first, then applies each next rating only to the healthy percentage that is left, and rounds the final combined value to the nearest 10 (values ending in 5 round up). Paired-limb ratings get a 10% bilateral factor first.
This is set out in 38 CFR 4.25 (the Combined Ratings Table) and 38 CFR 4.26 (the bilateral factor). The math is why two 50% ratings make 80%, not 100%, and why a 10% rating can sometimes move your combined rating up a full step and sometimes not at all.
The formula
Worked example: 60% and 30% bilateral (both knees) plus 20% back. Knees: 60, then 30% of 40 = 12, so 72; add 10% (7.2) = 79. Then 79 + 20% of 21 = 83.2, so 83, which rounds to an 80% combined rating.
VA combined ratings table (two ratings)
Find one rating in the left column and the other across the top. For three or more, combine the result with the next rating the same way.
| Rating | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 10% | 19 | 28 | 37 | 46 | 55 | 64 | 73 | 82 | 91 |
| 20% | 28 | 36 | 44 | 52 | 60 | 68 | 76 | 84 | 92 |
| 30% | 37 | 44 | 51 | 58 | 65 | 72 | 79 | 86 | 93 |
| 40% | 46 | 52 | 58 | 64 | 70 | 76 | 82 | 88 | 94 |
| 50% | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 |
| 60% | 64 | 68 | 72 | 76 | 80 | 84 | 88 | 92 | 96 |
| 70% | 73 | 76 | 79 | 82 | 85 | 88 | 91 | 94 | 97 |
| 80% | 82 | 84 | 86 | 88 | 90 | 92 | 94 | 96 | 98 |
| 90% | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 |
Calculated with the 38 CFR 4.25 method. Values are combined values before the final rounding to the nearest 10.
Patterns worth knowing
The VA starts with the highest rating; because each step is rounded, order can move a value by a point.
At a combined 80, a new 10% adds only 2 points. That is why many 10% ratings rarely reach 100%.
A combined value of 65 is a 70% rating, but 64 is 60%. A single point can mean hundreds of dollars a month.
The VA applies the bilateral factor itself when both sides of a pair are rated; you do not need to claim it.
How to use this VA combined rating calculator
- Enter each ratingOne line per condition, in any order.
- Tick bilateral pairsConditions affecting both arms, both legs or paired skeletal muscles.
- Read the stepsSee every combination step the VA would take.
- Test a new claimThe table shows what each possible new rating would do to your total.
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VA combined rating FAQ
Start with your highest rating, apply each next rating to the healthy percentage left over, round each step, then round the final value to the nearest 10. 50% and 30% give 65, which rounds to 70%.
75, which rounds to an 80% combined rating.
Combine the ratings of paired extremities first, then add 10% of that combined value before combining it with your other ratings.
Yes. Combined values ending in 5 round up, so 95 becomes 100%.
Because it applies only to your remaining healthy percentage. At a combined 72, a 10% adds about 3 points, to 75, which is enough to round to 80%; at 66 it would reach only 69.
Yes. It is Table I in 38 CFR 4.25. The calculator uses the same method, step by step.
As many as you have. Add a line for each rated condition.
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Manzoor Ahmad
Calculator developer & web designer · 13+ years in web development and SEO
Last reviewed: October 30, 2026I am a pharmacist turned tech geek, and I design, code and test every calculator on DexoCalc myself. I have not served in the military, so this tool does not run on opinion: the combining and rounding follow 38 CFR 4.25 step by step and the bilateral factor follows 38 CFR 4.26; the two-rating table on this page is generated by the same code.
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Disclaimer: DexoCalc is independent and not affiliated with the Department of Defense (Department of War), the Department of Veterans Affairs or any military branch. Results are educational estimates; official records and your chain of command decide.
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