Interest Tools

Simple & compound interest · Financial calculator (TVM) · Historic mortgage balance (Pro)

Interest Calculator

Principal

Annual Rate (%)

Duration

Unit

Compounding

Result

Principal

—

Interest Earned

—

Total

—

Financial Calculator

Select the variable to solve for using the radio button, then enter the other known values.

Cash-flow sign convention: negative amounts are money out, positive amounts are money in.

Present Value (PV)

Payment Amount (PMT)

Number of Payments (n)

Perpetuity (∞)

Payment Frequency

N is the total number of payments at the selected frequency.

Annual Interest Rate (%)

Future Value (FV)

Payment at end of period

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Estimate a mortgage balance at any past or future date using known data points. Sign in to access this tool.