Estimate your monthly Social Security retirement benefit in seconds. Enter your average indexed monthly earnings below to see your projected payment at full retirement age — free, private, and no sign-up required.
Using this Social Security calculator takes less than a minute. First, find your Average Indexed Monthly Earnings (AIME) — the figure the Social Security Administration uses as the foundation of every retirement benefit calculation. You can find an estimate of your AIME on your annual Social Security statement, or compute a rough figure yourself by averaging your highest 35 years of inflation-adjusted (indexed) earnings and dividing by 420 months. Enter that number into the input field above and press Calculate.
The calculator instantly applies the official 2025 SSA benefit formula — including the current bend points of $1,226 and $7,391 — to your AIME and displays your estimated monthly benefit, also known as your primary insurance amount (PIA). This is the amount you would receive each month if you claim benefits at your full retirement age. Below the monthly figure you will also see the annualized estimate and a breakdown of how the three formula brackets contributed to your result. Press Reset at any time to restore the default example of $6,000.
Try a few different AIME values to see how your benefit responds. Because the formula is progressive, each additional dollar of average earnings replaces a smaller share of income than the one before it. Someone with an AIME of $3,000 receives a far higher replacement rate than someone with an AIME of $12,000, even though the higher earner still gets a larger check. This walkthrough of the numbers below explains exactly why.
Pay special attention to the detail line beneath your monthly result. It restates the annual estimate and spells out the three-bracket arithmetic, so you can confirm exactly where each dollar of your benefit comes from. If your AIME sits near a bend point — for instance just above $1,226 or just below $7,391 — even small changes in your earnings history can move your benefit more than you might expect, which is one more reason to keep your official earnings record accurate.
Social Security retirement benefits are a cornerstone of financial security for tens of millions of Americans. The program pays monthly income to retired workers who have accumulated enough work credits — generally 40 credits, equivalent to about 10 years of covered employment. Your benefit is not a flat amount and it is not simply a return of the payroll taxes you paid. Instead, the Social Security Administration computes it from your lifetime earnings record using a formula designed to replace a larger percentage of pre-retirement income for lower earners than for higher earners.
The calculation begins with your AIME, or Average Indexed Monthly Earnings. The SSA takes your earnings history, adjusts each year’s wages for economy-wide wage growth (a process called indexing, which puts earnings from decades ago on a comparable footing with recent earnings), selects your highest 35 years, totals them, and divides by 420 — the number of months in 35 years. If you worked fewer than 35 years, the missing years count as zeros, which is one reason long, steady careers produce noticeably larger benefits.
Your AIME is then run through the PIA formula, where the bend points come into play. Bend points are the dollar thresholds — $1,226 and $7,391 for 2025 — at which the replacement percentages change. The result of that formula is your primary insurance amount: the monthly benefit payable if you file at your full retirement age. Your full retirement age depends on your birth year: it is 66 for those born from 1943 to 1954, rises gradually to 67 for anyone born in 1960 or later, and every month you claim before or after that age adjusts the payment downward or upward.
Benefits are funded primarily by payroll taxes — 6.2% from employees and 6.2% from employers on earnings up to the annual taxable maximum ($176,100 in 2025) — plus income taxes some beneficiaries pay on their benefits. Once you begin receiving payments, they are adjusted most years by a cost-of-living adjustment (COLA) tied to inflation, so your purchasing power is partially protected over a long retirement. Spouses, divorced spouses, survivors, and dependent children may also qualify for benefits based on a worker’s record, which makes understanding the underlying formula valuable for household planning, not just individual planning.
It is important to keep expectations realistic. For a typical worker, Social Security replaces roughly 40% of pre-retirement earnings — a meaningful foundation, but rarely enough on its own. Financial planners usually recommend pairing it with personal savings such as 401(k) plans, IRAs, and other investments. The calculator on this page helps you quantify the Social Security leg of that three-legged stool so you can plan the other two with confidence.
Earning the required work credits is straightforward: in 2025 you receive one credit for each $1,810 of covered earnings, up to four credits per year, so most people qualify after about ten years of work. But qualifying and maximizing are different things — your benefit always traces back to the 35-year AIME average. Even modest late-career earnings can replace an early low-earning or zero year among your top 35, which is why working a few additional years sometimes raises a monthly benefit more than people expect.
The 2025 Social Security benefit formula applies three marginal rates to your AIME, split at the two bend points:
The sum of these three pieces is your primary insurance amount (PIA), rounded down to the nearest dime. The formula is applied to the bend points in effect for the year you turn 62, regardless of when you actually claim. Let us walk through two worked examples with real numbers.
Worked example 1 — AIME of $6,000. The first bracket contributes 90% of $1,226, which is $1,103.40. The second bracket covers earnings from $1,226 up to $6,000, a span of $4,774; at 32% that contributes $1,527.68. Nothing falls into the 15% bracket because $6,000 is below the second bend point of $7,391. Adding the pieces: $1,103.40 + $1,527.68 = $2,631.08, which rounds down to a PIA of $2,631.00 per month, or $31,572.00 per year. Notice the replacement rate: $2,631 is about 44% of the $6,000 monthly average.
Worked example 2 — AIME of $2,500. The first bracket again contributes 90% of $1,226, or $1,103.40. The second bracket covers $2,500 − $1,226 = $1,274 at 32%, contributing $407.68. The total is $1,103.40 + $407.68 = $1,511.08, rounding down to $1,511.00 per month ($18,132.00 per year). Here the replacement rate is about 60% — substantially higher than in the first example, which illustrates the progressive design: lower lifetime earners get more of each dollar replaced.
A high earner shows the other side of the curve. With an AIME of $10,000, the brackets yield $1,103.40 + 32% of $6,165 ($1,972.80) + 15% of $2,609 ($391.35) = $3,467.55, rounding to $3,467.50 per month — a replacement rate under 35%. The widget above performs exactly this arithmetic for any AIME you enter, so experiment with your own figures.
Scenario 1 — Claiming early at 62 versus waiting until full retirement age. Suppose Maria’s AIME is $5,500, giving her a PIA of roughly $2,471 per month at her full retirement age of 67. If she claims at 62, her benefit is permanently reduced by about 30%, leaving her with approximately $1,730 per month. Over a 20-year retirement, that early-claiming reduction costs her around $178,000 in lifetime benefits compared with waiting until 67 — a powerful illustration of why the claiming decision matters as much as the earnings record.
Scenario 2 — Delaying past full retirement age to 70. Now consider James, also with a PIA of $2,471 at a full retirement age of 67. For every year he delays past 67, he earns delayed retirement credits of 8% per year, up to age 70. Claiming at 70 boosts his monthly check by 24%, to about $3,064. If James lives into his mid-80s, the delayed strategy pays him tens of thousands of dollars more over his lifetime than claiming at 67. The trade-off is real — he forgoes three years of payments — so health, longevity expectations, and immediate income needs should all factor into the choice.
Both scenarios start from the same foundation the calculator provides: the PIA at full retirement age. Once you know that anchor number, you can apply the early-reduction or delayed-credit percentages to model any claiming age between 62 and 70 and compare lifetime outcomes side by side.
Continue planning your retirement with these free tools:
This page provides a free Social Security benefit calculator that estimates a worker’s monthly retirement benefit (primary insurance amount) from their average indexed monthly earnings using the official 2025 SSA formula with bend points of $1,226 and $7,391. It includes two worked numerical examples ($6,000 AIME yields about $2,631/month), practical claiming-age scenarios, common mistakes, and related retirement calculators. All figures are estimates for planning purposes only.
Estimate disclaimer: The results on this page are estimates for educational and planning purposes only. They are computed with the 2025 SSA bend points ($1,226 / $7,391) and do not account for your complete earnings record, exact claiming age, spousal or survivor benefits, earnings-test reductions, taxation of benefits, future COLA adjustments, or potential legislative changes. For an official personalized estimate, review your statement at ssa.gov or contact the Social Security Administration.
The SSA averages your highest 35 years of indexed earnings into an Average Indexed Monthly Earnings (AIME) figure, then applies the PIA formula: 90% of the first $1,226 of AIME, 32% of the next $6,165, and 15% of anything above $7,391 (2025 bend points). The result is your monthly benefit at full retirement age.
Full retirement age is 66 if you were born between 1943 and 1954, and rises gradually to 67 for anyone born in 1960 or later. Claiming earlier reduces your monthly benefit, while delaying past full retirement age earns credits of 8% per year up to age 70.
Bend points are the income thresholds where the benefit formula’s replacement rates change. For 2025 they are $1,226 and $7,391: your AIME up to $1,226 is replaced at 90%, the portion between $1,226 and $7,391 at 32%, and anything above $7,391 at 15%.
For 2025, the maximum monthly benefit is about $2,831 if you claim at 62, $4,018 at full retirement age (67), and $5,108 at age 70. Only workers with maximum taxable earnings for at least 35 years qualify for these amounts.
Yes, but if you are under full retirement age, the 2025 earnings test withholds $1 in benefits for every $2 earned above $23,400 — or $1 for every $3 above $62,160 in the year you reach full retirement age. Once you reach full retirement age, you can earn any amount with no reduction.
Up to 85% of your benefits may be subject to federal income tax if your combined income exceeds $25,000 as a single filer or $32,000 as a joint filer. Below those thresholds, benefits are generally not taxed at the federal level, though some states tax them.
With a full retirement age of 67, claiming at 62 permanently reduces your benefit by about 30% — a $2,631 monthly PIA becomes roughly $1,842. The reduction is smaller if your full retirement age is 66 (about 25%). The cut lasts for life, though COLA increases still apply.
Create a free my Social Security account at ssa.gov to view your official earnings history, benefit estimates at different claiming ages, and your annual statement. Review it every year or two and report errors promptly, since mistakes directly lower your benefit.
APA: Sigma Calculator. (2026). Social Security Calculator. https://sigmacalculator.net/financial-calculators/social-security-calculator/
MLA: “Social Security Calculator.” Sigma Calculator, 2026, https://sigmacalculator.net/financial-calculators/social-security-calculator/.
Chicago: Sigma Calculator. “Social Security Calculator.” Accessed October 8, 2026. https://sigmacalculator.net/financial-calculators/social-security-calculator/.
Last updated: October 8, 2026