Enter your individual disability ratings to calculate your combined VA disability percentage.
Veteran Alone (No Dependents)
Veteran with Spouse
Veteran with Child
Veteran with Spouse & Child
Calculation Results
Raw Combined Score:0%
Final VA Disability Rating:0%
Estimated Monthly Compensation (2024 Rates):$0.00
*Note: Compensation estimates are based on 2024 VA tables. Actual payments may vary based on specific dependent details and bilateral factors.
Understanding VA Disability Rates for Conditions
Calculating your Veterans Affairs (VA) disability rating is not as simple as adding up percentages. The VA uses a unique method often referred to as "VA Math" to determine your overall combined disability rating. This method accounts for the "efficiency of the whole person," ensuring that a veteran cannot be rated more than 100% disabled.
How "VA Math" Works
The concept behind the VA's Combined Ratings Table is that each disability affects the remaining efficiency of the veteran.
For example, if you have a 50% disability rating, the VA considers you to be 50% disabled and 50% healthy. If you receive a second rating of 50%, it is applied to the remaining 50% of your health, not the original 100%. Therefore, the second 50% rating adds only 25% to your total (50% of the remaining 50%), resulting in a 75% raw score.
Example Calculation:
1. Condition A: 60%
2. Condition B: 20%
Step 1: Start with 100% efficiency. Step 2: Apply the highest rating (60%). Remaining efficiency is 40%. Step 3: Apply the next rating (20%) to the remaining 40%. Calculation: 40 * 0.20 = 8. Step 4: Add the 8 to the initial 60. Raw Score: 68%. Final Rating: Rounded to the nearest 10% = 70%.
Rounding Rules
The raw combined score is always rounded to the nearest 10%. This rounding can significantly impact your monthly compensation:
Scores ending in 1, 2, 3, or 4 are rounded down (e.g., 84% becomes 80%).
Scores ending in 5, 6, 7, 8, or 9 are rounded up (e.g., 85% becomes 90%).
Why Your Combined Rating Matters
Your combined rating determines your eligibility for various benefits, including:
Monthly Compensation: Tax-free monetary benefits paid to you.
Health Care: Priority groups for VA health care services.
Property Tax Exemptions: Many states offer tax breaks for veterans with a 100% rating.
The Bilateral Factor
If you have disabilities affecting both arms, both legs, or paired skeletal muscles, the VA applies a "Bilateral Factor." This adds an extra 10% to the combined value of those specific disabilities before combining them with other conditions. Our calculator above provides a standard combination estimate; if you have bilateral conditions, your actual rating might be slightly higher.
function calculateCombinedRating() {
// 1. Collect all inputs
var inputs = [
document.getElementById('rating1').value,
document.getElementById('rating2').value,
document.getElementById('rating3').value,
document.getElementById('rating4').value,
document.getElementById('rating5').value,
document.getElementById('rating6').value
];
var status = document.getElementById('veteranStatus').value;
// 2. Filter valid numbers and sort descending
var ratings = [];
for (var i = 0; i 0) {
// Cap at 100 just in case
if (val > 100) val = 100;
ratings.push(val);
}
}
// Sort descending (highest first) – Required for VA Math
ratings.sort(function(a, b) {
return b – a;
});
// 3. Logic for VA Combined Rating
var currentEfficiency = 100; // Veteran starts 100% healthy
var combinedValue = 0;
if (ratings.length === 0) {
combinedValue = 0;
} else {
for (var j = 0; j 100) finalRating = 100;
// 5. Compensation Estimator (Based on approx 2024 COLA rates)
// Note: These are simplified estimates for demonstration.
// Base Rates (Veteran Alone)
var basePay = {
10: 171.23,
20: 338.49,
30: 524.31,
40: 755.28,
50: 1075.16,
60: 1361.88,
70: 1716.28,
80: 1995.01,
90: 2241.91,
100: 3737.85
};
// Adders for Spouse/Child (Simplified averages for 30%-100%)
// These are approximations of the "With Spouse" vs "Alone" difference
var spouseAdder = { 30: 56, 40: 75, 50: 94, 60: 113, 70: 131, 80: 150, 90: 169, 100: 188 }; // Approx
var childAdder = { 30: 42, 40: 56, 50: 70, 60: 84, 70: 98, 80: 112, 90: 126, 100: 140 }; // Approx
var estimatedPay = 0;
if (finalRating >= 10) {
estimatedPay = basePay[finalRating] || 0;
// Apply dependent logic if rating >= 30%
if (finalRating >= 30) {
if (status === 'spouse' || status === 'spouse_child') {
estimatedPay += (spouseAdder[finalRating] || 0);
}
if (status === 'child' || status === 'spouse_child') {
estimatedPay += (childAdder[finalRating] || 0);
}
}
}
// 6. Display Results
document.getElementById('rawScore').innerText = rawRounded.toFixed(0) + "% (Exact: " + combinedValue.toFixed(2) + "%)";
document.getElementById('finalRating').innerText = finalRating + "%";
// Format Currency
var currencyFormatter = new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD',
});
document.getElementById('monthlyComp').innerText = currencyFormatter.format(estimatedPay);
document.getElementById('result').style.display = 'block';
}