Calcida

Retirement Savings Calculator

Written by Calcida Team
Reviewed for accuracy and clarity
Last updated: April 2026

Estimate how your retirement savings may grow from your current balance and future contributions.

This page helps you test assumptions for return rate, contribution level, and time horizon so you can compare scenarios and set more realistic targets.

For related tools, browse Retirement Calculators.

Projected Balance at Retirement

$1,620,478
Total Contributions: $389,957

Growth Over Time

What should you do next?

Plan your financial future with these tools:

Investment Return →
Net Worth TrackerCompound Interest

How This Calculator Works

This retirement savings calculator estimates future retirement savings using your current balance, future contributions, and an assumed return.

  • Enter current savings: Your current retirement balance across accounts you want to include.
  • Set future contributions: Add the amount you plan to contribute each month or year (based on the calculator inputs).
  • Choose an expected return: Use a conservative assumption if your goal is “minimum required” planning.
  • Set the time horizon: Years until retirement is one of the biggest drivers due to compounding.
  • Review the projection: Compare scenarios by changing one assumption at a time.

Formula

FV = P(1 + r)^n + PMT × [((1 + r)^n − 1) / r]
Where:
  • FV = future value at retirement
  • P = current retirement savings balance
  • PMT = periodic contribution (annual or monthly, consistent with r)
  • r = periodic return rate (decimal)
  • n = number of periods
This is a planning estimate. Markets vary and returns are not guaranteed.
Small changes in time horizon and contributions can change results materially.

Example Calculation

Current savings$35,000
Contribution$500/month
Return6%/year
Time horizon25 years
Typical outcome
Balance grows with consistent contributions and compounding
Use a conservative return assumption if you are planning for a required minimum outcome.

How to Use a Retirement Savings Projection

A projection is most useful as a comparison tool. Use it to test contribution levels and return assumptions, then pick a plan that still works under conservative inputs.

  • Focus on controllable levers: contribution level, fees, asset allocation, and time horizon.
  • Run at least two scenarios: one conservative and one optimistic to understand the range.
  • Tie it to a goal: if you have a target retirement spending level, work backward to a contribution plan.

Assumptions to Keep in Mind

  • Returns vary year to year; long-run averages are not a guarantee.
  • Fees and taxes can reduce realized returns and effective savings rate.
  • If contributions rise with income, rerun the calculator occasionally to keep the plan realistic.

Related tools: the 401(k) Calculator and the Inflation Calculator.

Frequently Asked Questions

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