# Veterans Disability Rating Calculator > Calculate combined VA disability rating using the VA's bilateral factor formula **Category:** Utility **Keywords:** calculator, tool **URL:** https://complete.tools/veterans-disability-rating-calculator ## How it calculates The calculation for the combined VA disability rating using the bilateral factor follows these steps: First, individual disability ratings are converted to decimal form. If the veteran has disabilities rated at D1% and D2%, the initial combined rating (C) can be calculated using the formula: C = D1 + D2 × (1 - D1/100). The bilateral factor (BF) is applied as follows: BF = (D1 + D2 - 0.2 × D1 × D2). The final combined rating is then calculated as: Final Rating = C + BF. Each variable represents a specific disability rating, and the mathematical relationships account for the diminishing returns of combined ratings due to the way the VA assesses disabilities. This ensures that the final rating accurately reflects the veteran's overall level of disability. ## Who should use this Veterans applying for disability benefits from the VA who have multiple disabilities affecting paired extremities. Disability claims officers assessing veteran benefits based on combined disability ratings. Healthcare professionals evaluating treatment plans for veterans with multiple disabilities. Advocates representing veterans in appeals for disability claims. ## Worked examples Example 1: A veteran has a left leg disability rated at 30% and a right arm disability rated at 20%. To calculate the combined rating: First, convert the ratings to decimal form: D1 = 30, D2 = 20. Calculate C: C = 30 + 20 × (1 - 30/100) = 30 + 20 × 0.7 = 30 + 14 = 44. Now apply the bilateral factor: BF = (30 + 20 - 0.2 × 30 × 20) = 50 - 120 = -70 (not applicable). So, Final Rating = 44%. Example 2: A veteran has a right leg disability rated at 40% and a left leg disability rated at 30%. C = 40 + 30 × (1 - 40/100) = 40 + 30 × 0.6 = 40 + 18 = 58. BF = (40 + 30 - 0.2 × 40 × 30) = 70 - 240 = -170 (not applicable). Final Rating = 58%. Example 3: A veteran with 50% right arm disability and 30% left arm disability calculates C = 50 + 30 × (1 - 50/100) = 50 + 15 = 65. BF = (50 + 30 - 0.2 × 50 × 30) = 80 - 300 = -220 (not applicable). Final Rating = 65%. ## Limitations This tool has specific limitations that may affect the accuracy of results. First, it assumes that all input disability ratings are expressed in whole percentages, as the VA does not recognize fractions in ratings. Second, the calculator does not account for any additional factors that may influence ratings, such as special monthly compensation or secondary disabilities. Third, the bilateral factor is only applicable for paired extremities and may not be relevant for all combinations of disabilities. Lastly, the calculator does not handle cases of overlapping disabilities that may require individual assessment by the VA. ## FAQs **Q:** How does the VA define bilateral disabilities? **A:** Bilateral disabilities refer to conditions affecting paired extremities, such as legs or arms, and require specific calculations for combined ratings. **Q:** What happens if my disability ratings change? **A:** If disability ratings change, the calculator must be used again to reflect the new percentages, as the combined rating will be recalculated. **Q:** Can I use this calculator for disabilities not involving paired extremities? **A:** No, the bilateral factor specifically applies to disabilities in paired extremities; other disabilities require different calculations. **Q:** How does the VA round disability ratings? **A:** The VA rounds combined disability ratings to the nearest ten percent, which may affect the final output of the calculator. --- *Generated from [complete.tools/veterans-disability-rating-calculator](https://complete.tools/veterans-disability-rating-calculator)*