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Withdrawal Plan Calculator

How long will your savings last? From capital, monthly withdrawal and rate, see the duration, interest earned, the capital-preserving payout and a monthly plan.

Updated 26.09.2026 Data stays local Free
What do you want to calculate?

Capital lasts for

27 years 7 months

Total withdrawals

€165,066.44

Interest received

€65,066.44

Perpetual annuity (max. withdrawal)

€333.33/month

Note: Your withdrawal of €500.00/month exceeds the perpetual annuity of €333.33/month. The capital will be depleted.

Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.

FAQ

Frequently Asked Questions

What is a withdrawal plan?

A withdrawal plan allows you to receive regular payments from an invested capital sum. You can choose between capital preservation (only withdrawing returns) or capital consumption (gradually using up the principal).

How long will my savings last with a withdrawal plan?

The duration depends on the invested capital, withdrawal amount, and investment return. As a rule of thumb, a 4% annual withdrawal rate is considered sustainable for 30+ years in a diversified portfolio.

Are my entered amounts stored anywhere?

No. All calculations happen exclusively in your browser. Your inputs are never sent to our server or stored. You can safely enter sensitive financial data.

Guide

What is the Withdrawal Plan Calculator?

The withdrawal plan calculator computes how long capital lasts with regular withdrawals and ongoing interest.

How does the Withdrawal Plan Calculator work?

Enter starting capital, monthly withdrawal and interest rate. The calculator determines when the capital is exhausted and shows the withdrawal plan month by month. In the second mode it works the other way round: it computes the maximum monthly withdrawal with which the capital is used up exactly at the end of the desired period.

Key Data and Facts

Common in retirement planning (decumulation). 4% rule of thumb: withdraw 4% of initial capital per year. Consider flat-rate tax on investment income.

Step-by-Step Guide

How to calculate your withdrawal plan step by step: 1. Enter the starting capital: The assets you want to withdraw from (e.g. 200,000 EUR). 2. Set the monthly withdrawal: The amount you need on a regular basis. 3. Enter the expected return: The annual interest during the withdrawal phase (conservatively 3-4 %). The calculator applies one twelfth of the annual rate each month and withdraws at the end of each month. 4. Calculation: The calculator determines how long the capital lasts. Formula: Duration = -ln(1 - capital x monthly interest / withdrawal) / ln(1 + monthly interest). 5. Calculate the other way round: In the "Maximum withdrawal" mode you set the desired duration. Formula: withdrawal = capital x monthly interest / (1 - (1 + monthly interest)^-months). 6. The 4 % rule as a guide: An annual withdrawal of 4 % of the initial capital (then adjusted for inflation) has historically lasted at least 30 years in most cases for diversified portfolios. Example: 200,000 EUR starting capital, 1,000 EUR monthly withdrawal, 3 % return p.a. Monthly interest: 0.25 %. Without return: 200,000 / 1,000 = 200 months (16.7 years). With 3 % return: -ln(1 - 200,000 x 0.0025 / 1,000) / ln(1.0025) = -ln(0.5) / ln(1.0025) = about 277.6, i.e. 278 months (23 years and 2 months); the last withdrawal is only about 606 EUR. If the capital should last exactly 20 years (240 months): 200,000 x 0.0025 / (1 - 1.0025^-240) = about 1,109 EUR per month. 4 % rule: 200,000 x 4 % = 8,000 EUR/year = 667 EUR/month.

Calculation Example

200,000 EUR starting capital, 1,000 EUR/month withdrawal, 3 % return: the capital lasts 278 months (23 years and 2 months). For exactly 20 years, a maximum of about 1,109 EUR/month is possible. Under the 4 % rule: 667 EUR/month.

Sources

Official sources

Calculations are based on applicable German laws and official data:

Full methodology at Methodology.

Reviewed by Konstantin Iakovlev  ·  Last updated:

Finance

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