Simple Interest Calculator
Calculate the interest and end balance based on the simple interest formula: I = P × R × T
Simple Interest Calculation
Simple Interest Results
Input Summary
Principal: $
Annual rate: %
Time period:
Calculation Results
Simple interest: $
End balance: $
Interest per year: $
Formula Breakdown
Simple Interest Formula: I = P × R × T
Where:
- P = Principal amount ($)
- R = Annual interest rate (% or )
- T = Time period in years ()
End Balance: A = P + I = P(1 + RT)
Note: Simple interest is calculated only on the principal amount. Most real-world investments use compound interest instead.