Money calculator

Savings Goal Calculator

Find the monthly amount needed to reach a future savings target.

Assumes monthly compounding and contributions at each month’s end. Projections are estimates, not guarantees.

Required monthly contribution

How it works

The calculator grows current savings first, then treats contributions as an ordinary annuity deposited at each month’s end. At 0% it uses simple division. Returns and savings rates can change, so the projection is an estimate rather than a guarantee.

Monthly contribution = (Goal − Current × (1 + i)^n) ÷ (((1 + i)^n − 1) ÷ i)

Worked example

With no interest, growing $1,000 to $7,000 in 24 months requires ($7,000 − $1,000) ÷ 24 = $250 per month.

How to use this tool

  • Enter the known values and choose units where available.
  • Check the primary result and supporting details.
  • Clear or replace an input to calculate another case.

Frequently asked questions

What happens with invalid or incomplete inputs?

The result remains blank until the required inputs form a finite, meaningful calculation. Zero denominators and physically impossible negative quantities are not calculated.

Can I use decimal values?

Yes. The tool accepts decimals and keeps full precision for the calculation while rounding the displayed result for readability.