Simple Interest Calculator

What to calculate
$
$
%

Example

This is a sample result, not your calculation. Enter your own values to replace it.

Choose what to work out, fill in the other three values, then press Calculate.

End Balance

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Results

End Balance
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Total Interest
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Calculation steps

Check your entries

Fill in the three values the chosen tab asks for. Simple interest only ever adds, so an end balance must be at least the principal.