How the VA Disability Calculator Works
Calculating your combined VA disability rating isn't as simple as adding your percentages together (e.g., 50% + 50% does not equal 100%). The Department of Veterans Affairs uses a specific method often called "VA Math" or the "Combined Ratings Table."
Our VA Disability Calculator mimics this official logic. It treats each disability as a percentage of your remaining efficiency.
Understanding VA Math
The VA ranks your disabilities from highest to lowest. If you have a 50% disability, the VA considers you 50% disabled and 50% healthy (efficient). If you have another 30% rating, it is applied to the remaining 50% efficiency, not the total.
Why Use This Tool?
- Accuracy: Uses the exact algorithm from 38 CFR Book C.
- Privacy: No data is sent to servers; everything calculates on your device.
- Reports: Generate PDF and CSV files for your records or VSO meetings.
Frequently Asked Questions (FAQ)
The VA calculates the exact percentage (e.g., 84%) and then rounds it to the nearest 10%. For example, 84% rounds down to 80%, while 85% rounds up to 90%.
Currently, this calculator handles standard combined ratings. For bilateral factors, calculate the bilateral condition separately first, then input the resulting combined number here.