About this calculator

Most VA disability calculators are law-firm lead funnels. They want your email, phone, and current claim status — before they even show you a number. This site flips that: no email, no signup, no phone capture. The math runs entirely in your browser; you can verify by opening DevTools → Network and confirming nothing leaves your device when you click.

How the numbers are sourced

2026 monthly compensation rates come directly from va.gov (effective Dec 1, 2025; 2.8% COLA per SSA). SMC rates from va.gov SMC rates. The combined-rating formula implements 38 CFR §4.25. The bilateral factor implements 38 CFR §4.26 — including §4.26(d), which says the bonus is omitted if it produces a lower final rating. TDIU screen follows 38 CFR §4.16(a).

Our stance

This is an estimate, not VA advice. Your actual award letter is authoritative. For appeals, TDIU filings, secondary connections, and SMC determinations, talk to an accredited Veterans Service Officer (VSO) — DAV, VFW, American Legion, and your state's department of veterans affairs all provide free VSO assistance.

Maintained by the VA Math Calculator team. Math constants refreshed each December when the new COLA is announced. Questions or a correction? Contact us.