VABenefits.info

VA Disability Benefits Rating Calculator

How multiple disability ratings combine into one, under 38 CFR 4.25 and 4.26 — including the bilateral factor, and every step of the arithmetic.

0%
combined rating

no ratings entered

Before rounding: 0%

VA rounds the combined figure to the nearest 10% to set the rating it pays.

Your ratings

Condition(s) Rating Limb
When does the limb setting matter?

Only for the bilateral factor (38 CFR 4.26). If you have a compensable rating in both upper limbs or both lower limbs, those ratings are combined with each other first and then get an extra 10% added before they join the rest. One side on its own earns nothing extra, so leave this on neither unless a pair is involved.

Most of the time you just enter each side as its own row. A 10% left ankle and a 10% right ankle are two ratings — put them in as Left lower and Right lower, and the factor is applied for you. You never add them up yourself.

The “one rating covering both” options exist for the uncommon case where VA issued a single evaluation for the pair. In practice that is almost always bilateral flat feet (pes planus) or bilateral plantar fasciitis. Those still earn the factor, even though there is only one rating to enter.

“Lower” covers the whole lower limb, foot included — which is why bilateral flat feet count, even though nobody would call a foot a leg. “Upper” covers the shoulder, elbow, wrist and hand.

How this was worked out

Why don't the ratings just add up?

VA ratings do not add up. Two 50% ratings are not 100% — they combine to 75%. VA works them out one pair at a time, and every rating after the first is worth less than the one before it.

VA treats you as 100% able to begin with. A 50% rating takes half of that, leaving 50% ability. The next rating is taken out of what is left, not out of the original 100 — so a second 50% rating takes half of the remaining 50, which is 25, for a combined 75%. Each further rating is worth less than the one before it. Every pair is rounded to a whole number before the next one is applied, which is why the running figures below are whole numbers.

What one more rating would do

Your combined figure if one additional rating were granted on top of the list above.

This is an estimate, not a VA decision. It applies the combined-ratings arithmetic in 38 CFR 4.25 and the bilateral factor in 38 CFR 4.26 to the figures you enter. It does not know your effective dates, dependents, special monthly compensation, or anything else VA weighs, and it cannot tell you what you are owed. Only VA decides your rating, and the figure on your decision letter controls. If your letter and this page disagree, the letter is the one that counts — and it may be worth having an accredited representative look at why.

Nothing you enter here is sent anywhere. No account, no tracking, no stored data — the page runs entirely in your browser.