Social Security Calculator

Estimate your Social Security retirement benefit by comparing when you start benefits, your full retirement age, delayed retirement credits and future cost-of-living adjustments.

Year of Birth

Used to determine the applicable full retirement age and delayed-retirement rules.

Estimated Monthly Benefit at Full Retirement Age

Enter the benefit shown on your Social Security Statement or another reliable estimate.

Age You Plan to Start Benefits

years

Enter a value from 62 through 70. Decimal values represent additional months.

Assumed Annual COLA

%/yr

Future Benefit Projection

Social Security Benefit Formula

Estimated Benefit = Benefit at Full Retirement Age × Claiming-Age Adjustment Before Full Retirement Age: First 36 months early = 5/9 of 1% reduction per month Additional early months = 5/12 of 1% reduction per month After Full Retirement Age: For people born in 1943 or later, delayed retirement credits are generally 8% per year until age 70. Future Benefit = Starting Benefit × (1 + COLA)^years

This is a simplified planning model. It uses the benefit amount you enter at full retirement age and applies standard claiming-age adjustment concepts. It does not reproduce the Social Security Administration's earnings-record calculation.

How to Use the Social Security Calculator

Enter Your Birth Year

Your birth year helps determine your full retirement age under the Social Security retirement rules.

Enter Your FRA Benefit

Use the monthly retirement benefit shown on your Social Security Statement for your full retirement age.

Choose Your Claiming Age

Compare starting at 62, your full retirement age, or a later age up to 70.

Review the Estimate

The calculator shows the estimated starting monthly benefit, adjustment, annual benefit and an optional future COLA projection.

Understanding Social Security Benefits

Claiming Age Matters

Retirement benefits can generally begin at age 62. Starting before full retirement age reduces the monthly amount, while delaying can increase the benefit up to age 70.

Delayed Retirement Credits

For people born in 1943 or later, Social Security generally provides an 8% annual delayed-retirement credit for months after full retirement age, with the increase stopping at age 70.

Your Earnings Record Is Important

Official Social Security benefits are based on your covered earnings record and the applicable benefit rules. This calculator intentionally starts with your estimated benefit at full retirement age instead of recreating that earnings-based computation.

Planning Estimate Only

Use the estimate for planning and comparison. Your official benefit can differ because of your earnings history, filing circumstances, future legislation, COLAs and other Social Security rules.

Frequently Asked Questions

It estimates a retirement benefit from a user-entered benefit amount at full retirement age and applies Social Security claiming-age adjustments. It is a planning estimate, not an official Social Security benefit calculation.

Retirement benefits generally cannot begin before age 62. Starting before full retirement age generally reduces the monthly benefit, while delaying beyond full retirement age can increase it up to age 70.

Full retirement age depends on year of birth. For people born in 1960 or later, it is 67. Earlier birth years have lower full retirement ages under the Social Security rules.

No. This Numorify calculator does not access your Social Security earnings record. For a personalized estimate based on your earnings history, use your official my Social Security account or an SSA benefit calculator.

No. This calculator is an educational planning tool. Your official benefit depends on your earnings record, claiming circumstances, applicable law and Social Security Administration calculations.