★ free tool, updated 2026

Savings rate calculator: how much do you keep?

Enter your monthly take-home pay and what you save. Everything is calculated in your browser, and nothing you type is sent or stored.

£

What lands in your account after tax and any pension deducted through payroll.

£

Cash savings, ISAs and other investments, from your take-home pay.

£

Yours plus your employer's, if they come out of your pay before you receive it.

%

After inflation. Used only for the time estimate.

%

The share of your pot you plan to withdraw each year. Used only for the time estimate.

Enter your take-home pay and what you save to see your savings rate.

This is an illustration based on the numbers you enter, not financial advice. The time estimate assumes your income, spending and real return stay the same and that you start from nothing.

How your savings rate is worked out

Your savings rate is the money you save and invest divided by the income it comes from. The first figure uses your take-home pay, so it reflects what you set aside from money you could otherwise spend. If you add pension contributions, the second figure adds them to both sides, which shows how much of your total pay is going towards your future.

How the time estimate works

If you save a fixed share of your income and spend the rest, your spending sets the size of pot you need, and your savings build it. The estimate uses those two things with your chosen real return and withdrawal rate, starting from nothing. A higher savings rate shortens the time twice over: you build faster, and you need a smaller pot.

Pension money can't usually be accessed until the minimum pension age, so if you include a lot of pension saving, think about what you'd live on before then.

What this leaves out

It ignores tax, fees, pay rises, spending changes and the order in which good and bad investment years arrive. Treat the result as a way to compare scenarios, not as a forecast.

See your savings rate over time

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Questions people actually ask.

Your savings rate is the amount you save and invest divided by the income it comes from, shown as a percentage. This calculator shows it from take-home pay, and also with pension contributions added to both sides if you enter them.
It depends on what you want to know. Including pension contributions shows how much of your total pay is going towards your future, while the take-home figure shows what you set aside from the money you can spend. Pension money usually cannot be accessed until the minimum pension age.
A higher savings rate does two things at once: it builds your pot faster and it lowers the spending the pot has to support, so the target is smaller.