Simple Interest

Calculate simple interest earnings or loan costs from principal, rate, and time period. Free simple interest calculator with instant results.

Results

Total Amount

$1,250.00

Details

Simple Interest$250.00

Formula Used

I = P * R * T

How this calculator works

Calculate simple interest earnings or loan costs from principal, rate, and time period. Free simple interest calculator with instant results.

Formula

I = P * R * T

Worked example

$1,000 at 5% for 5 years earns I = 1,000 × 0.05 × 5 = $250. The total amount is $1,250.

Inputs

  • Principal Amount ($)
  • Annual Interest Rate (%)
  • Time (Years)

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