# Retirement Calculator

> Project retirement savings and compare them with an optional income target.

Page: https://askcalculators.com/calculator/retirement-calculator/
Definition: https://askcalculators.com/calculator/retirement-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/retirement-calculator/schema.json
Version: 20.1.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/retirement-calculator/?currentAge=35&retirementAge=65&currentSavings=50000&monthlyContribution=800&annualReturn=7&withdrawalRate=4

## Inputs
- currentAge: Current age; type=number; required; default=35; min=18; max=100
- retirementAge: Retirement age; type=number; required; default=65; min=19; max=100
- currentSavings: Current retirement savings; type=money; required; default=50000; min=0
- monthlyContribution: Monthly contribution; type=money; required; default=800; min=0
- annualReturn: Annual return; type=percent; required; default=7; min=0; max=30
- targetAnnualIncome: Target annual retirement income; type=money; optional; min=0
- withdrawalRate: Withdrawal rate; type=percent; required; default=4; min=0.1; max=20

## Outputs
- projectedSavings: Projected retirement savings; format=currency; primary
- totalContributions: Total contributions; format=currency
- investmentGrowth: Investment growth; format=currency
- targetNestEgg: Target nest egg; format=currency
- surplusGap: Surplus or gap; format=currency

## Formula
Balanceₙ = balanceₙ₋₁ × (1 + annual return/12) + monthly contribution

The optional target nest egg equals annual income divided by the withdrawal rate.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: Planning estimate only. Investment returns are not guaranteed.