Retirement Calculators

RetireLab guides

Plain-language answers to retirement calculators questions, written from the same sourced data behind RetireLab. Every guide lists its sources and the date it was last updated.

• Updated June 10, 2026

  How much do I need to save each month to retire with $1 million?

  At an assumed 7% return, $1 million by 65 takes about $381 a month from age 25, $820 a month from 35, or $1,920 a month from 45 — worked engine examples.

• Updated June 10, 2026

  How much is a 401(k) employer match really worth?

  A 50% match on the first 6% of an $80,000 salary is worth $2,400 a year — and about $360,211 by age 65 at an assumed 7% return. Formulas and vesting explained.