Calculator Inputs
Enter your disability ratings, paired-limb positions, and dependent details. The calculator estimates a combined rating and a monthly payment.
Example Data Table
| Scenario | Disability Ratings | Dependents | Exact Combined | Rounded Rating | Estimated Monthly |
|---|---|---|---|---|---|
| Example A | 50%, 30%, 20% | Spouse + 1 child | 72% | 70% | $2,074.45 |
| Example B | 40%, 20%, 10% | No spouse, no children, 1 parent | 57% | 60% | $1,540.02 |
| Example C | 30% left leg, 20% right leg, 10% | Spouse only | 53%* | 50% | $1,241.90 |
*Example C assumes a bilateral factor applies to paired lower-extremity ratings before the final combination.
Formula Used
VA combined ratings do not add percentages directly. The calculator uses whole person math: Combined = A + B × (100 − A) / 100, applied from highest to lowest rating. After all combinations, the exact value is rounded to the nearest 10% for the final combined rating.
When qualifying paired extremities are present, the calculator first combines those ratings, adds a 10% bilateral factor to that subtotal, and then combines the adjusted subtotal with all other ratings.
Estimated compensation uses the rounded combined rating plus dependent-based monthly rate tables and allowed add-ons for children and spouse Aid and Attendance.
How to Use This Calculator
- Add each service-connected condition and select its rating percentage.
- Mark left or right upper or lower extremities only where bilateral treatment may apply.
- Enter spouse, parent, and child information.
- Submit the form to see the exact combined value and rounded rating.
- Review the monthly and annual estimate, chart, and calculation steps.
- Use CSV or PDF export to save the result summary.
Frequently Asked Questions
1. Does this calculator add disability percentages directly?
No. VA uses whole person math, not simple addition. Each new rating reduces the remaining efficient portion of the body, then the final value is rounded to the nearest 10%.
2. What is the bilateral factor?
It is a 10% adjustment applied to qualifying paired extremity disabilities, such as both legs or both arms. That adjusted subtotal is then combined with other ratings.
3. Does the calculator estimate monthly compensation?
Yes. It estimates standard monthly compensation from the rounded combined rating, dependent count, and spouse Aid and Attendance input. It is best used as a planning estimate.
4. Are spouse and children always counted?
Dependent amounts usually begin at a 30% combined rating. At 10% or 20%, the estimate uses the basic rate only, even if you enter dependents.
5. Can I enter many conditions?
Yes. Use the add condition button to enter more disabilities. The page will sort and combine them automatically when you submit the form.
6. Why might my official VA award differ?
Official awards may differ because of effective dates, protected ratings, special monthly compensation, staged ratings, unusual bilateral exceptions, or claim-specific findings not modeled here.
7. Does this page support exporting results?
Yes. After calculation, you can export a CSV summary or a PDF report containing the main metrics and the entered disability list.
8. Should I use this as legal or claims advice?
No. This tool is educational. Use it for estimates and scenario planning, then verify your exact outcome with the official VA decision materials or an accredited representative.
Important Notes
- This page estimates standard compensation only.
- Special Monthly Compensation is not included.
- Rare bilateral exceptions and claim-specific adjudication details are not fully modeled.
- Always verify a final award with official decision documents.