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Savings duration calculator

If you stopped working today, how long would your savings actually last at your current withdrawal rate?

Runs in your browser No signup Free forever
Current savings dollars
$
Yearly withdrawals dollars
$
Investment return annual
%

Enter your numbers and calculate — how long your savings will last will appear here.

Yearly breakdown
YearSavings
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How it works

Two steps, no account

1

Enter your balance and spending

Your current savings, how much you withdraw each year, and the return you expect while it's still invested.

2

Read how long it lasts

Withdrawals happen monthly against a balance that keeps compounding — if the balance never reaches zero, the calculator reports "indefinitely" rather than a false end date.

FAQ

Common questions

Why does it say "indefinitely" sometimes?
If your investment return covers your withdrawal rate, the balance never runs down to zero — it's checked for up to 100 years before concluding the savings will effectively last indefinitely at that withdrawal rate.
Are withdrawals monthly or yearly?
The yearly amount you enter is divided into equal monthly withdrawals, matching how most people actually draw down savings — a lump sum once a year would produce a slightly different (longer) result.
Is my financial information sent anywhere?
No. All calculations run locally in your browser — nothing is transmitted, logged, or stored.
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Savings Duration Calculator

Our Savings Duration Calculator helps you determine how long your savings will last based on your current balance, withdrawal rate, and expected investment returns.

How to Use the Calculator

1. Enter Your Details

  • Current savings amount
  • Yearly withdrawal needs
  • Expected investment return
  • Calculate instantly

2. View Results

  • Total duration
  • Yearly breakdown
  • Balance projections
  • Depletion timeline

Key Features

Input Parameters

  1. Financial Details

    • Current balance
    • Withdrawal amount
    • Return rate
    • Monthly calculations
  2. Results Analysis

    • Duration estimate
    • Year-by-year breakdown
    • Balance tracking
    • Depletion point
  3. Projection Features

    • Monthly calculations
    • Compound returns
    • Regular withdrawals
    • Long-term analysis

Use Cases

1. Retirement Planning

  • Savings adequacy
  • Withdrawal strategy
  • Income planning
  • Portfolio longevity

2. Financial Analysis

  • Cash flow planning
  • Savings assessment
  • Risk evaluation
  • Duration projection

3. Decision Making

  • Withdrawal rates
  • Investment returns
  • Savings targets
  • Retirement timing

Technical Features

  • Real-time Calculations: Instant results
  • Detailed Breakdown: Year-by-year analysis
  • Accurate Projections: Monthly compounding
  • Clear Results: Easy to understand

Why Use Our Calculator

1. Comprehensive Analysis

  • Detailed projections
  • Monthly accuracy
  • Clear timeline
  • Visual results

2. User-Friendly Design

  • Simple inputs
  • Clear results
  • Interactive table
  • Easy adjustments

3. Planning Benefits

  • Retirement planning
  • Savings strategy
  • Risk assessment
  • Duration analysis

Understanding Savings Duration

Key Concepts

  1. Basic Factors

    • Initial savings
    • Withdrawal rate
    • Investment return
    • Time horizon
  2. Impact Factors

    • Market returns
    • Withdrawal timing
    • Inflation effects
    • Portfolio balance
  3. Planning Strategy

    • Sustainable withdrawals
    • Return expectations
    • Risk management
    • Duration goals

Best Practices

  1. Withdrawal Planning

    • Set realistic rates
    • Consider inflation
    • Adjust for markets
    • Monitor balance
  2. Duration Analysis

    • Regular reviews
    • Adjust withdrawals
    • Track progress
    • Update plans

Additional Considerations

1. Financial Factors

  • Market volatility
  • Inflation impact
  • Tax effects
  • Emergency needs

2. Risk Management

  • Portfolio allocation
  • Return expectations
  • Withdrawal flexibility
  • Safety margins

3. Planning Aspects

  • Lifestyle needs
  • Healthcare costs
  • Income sources
  • Market conditions

Tips for Users

  1. Before Calculating

    • Gather information
    • Set realistic goals
    • Consider inflation
    • Plan withdrawals
  2. During Analysis

    • Compare scenarios
    • Test assumptions
    • Review results
    • Consider adjustments
  3. After Results

    • Document findings
    • Plan strategy
    • Set reviews
    • Monitor progress