CalSTRS Pension Estimate — How California's Formula Works

Updated October 2026

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CalSTRS's real age factor table has many more rows (age 55-65+, sometimes in quarter-year steps) and differs between "2% at 60" and "2% at 62" (PEPRA) members. These three presets are rough reference points only — use your own CalSTRS benefit statement for your exact age factor.
These figures are illustrative, approximate starting points — real plan rules change over time, vary by hire date and exact years of service, and often include tiers this calculator simplifies. Always verify your real number with your own state retirement system's official calculator.

Estimated pension

CalSTRS (California State Teachers' Retirement System) is the largest teacher pension system in the country, and its multiplier is age-graded rather than a flat percentage — meaning the number you plug into this site's calculator depends on your planned retirement age, not just your years of service.

The two benefit structures: "2% at 60" and "2% at 62" (PEPRA)

Members first hired before January 1, 2013 are generally under the "CalSTRS 2% at 60" structure, where the age factor reaches 2.0% at age 60 and can rise to roughly 2.4% at age 65 with 30+ years of service, scaling down for earlier retirement (as low as roughly 1.1% at age 55). Members first hired on or after January 1, 2013 fall under California's PEPRA rules — "2% at 62" — where 2.0% is reached at age 62 instead, with a similar age-graded curve on either side.

Final Compensation (CalSTRS's version of FAS)

CalSTRS calls its FAS equivalent "Final Compensation." For most members, it's the average of your highest 3 consecutive years of creditable compensation. A notable exception: members hired before CalSTRS 2% at 60 rules tightened, who have 25 or more years of credited service, may qualify to use their single highest year instead of a 3-year average — a meaningfully more generous calculation for anyone who had a strong final year.

Worked example

A classic "2% at 60" member retiring at exactly 60 with a $90,000 Final Compensation and 28 years of service: age-60 factor ≈ 2.0%, so $90,000 × 28 × 0.02 = $50,400/year (~$4,200/month). The same teacher waiting until 63 (age factor closer to ~2.2%) with otherwise identical numbers: $90,000 × 28 × 0.022 ≈ $55,440/year — illustrating how much the age-graded curve rewards a later retirement date, independent of any extra years of service earned by working longer.

Why your exact age factor isn't a single number on this site

Because CalSTRS's age factor table has many rows (each age from roughly 55 to 65+, in some cases in quarter-year increments) and differs between the 2% at 60 and 2% at 62 structures, this calculator can't embed the full table — enter the specific age-factor percentage from your own CalSTRS benefit statement or the official CalSTRS age factor tables for your tier once you've picked a target retirement age.

FAQ

Am I "2% at 60" or "2% at 62"?
It depends on your CalSTRS membership date, not your current age — members first hired before January 1, 2013 are generally 2% at 60; those first hired on or after that date are PEPRA, 2% at 62. Your CalSTRS member statement states this directly.
Does CalSTRS include Social Security?
Most CalSTRS-covered teaching service is not covered by Social Security, which historically triggered the Windfall Elimination Provision (WEP) and Government Pension Offset (GPO) on any Social Security benefit from other work — see this site's WEP/GPO page for the 2025 law change that repealed both.

This is an educational, illustrative estimate — not an official CalSTRS calculation and not financial or retirement advice. CalSTRS age-factor tables and rules change over time; verify your exact benefit with CalSTRS's own calculator or member portal.

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