Simple Interest Calculator
Simple interest = Principal × Rate × Time. No compounding.
Use the Simple Interest Calculator
Enter principal, annual rate (%), and time in years. Simple interest and total are calculated.
Inputs
Principal, annual rate (%), and time in years.
Results
Simple interest
$1,500
Total (P + I)
$11,500
Simple interest = Principal × Rate × Time. No compounding.
How this calculator works
Simple interest = Principal × (rate/100) × time in years. Total = Principal + Interest.
How to interpret your results
Interest is the amount earned or owed. For compound interest use the compound interest calculator.
FAQs
What is simple interest?▾
Interest = Principal × Rate × Time. No compounding; interest not reinvested.
Which inputs do I need?▾
Principal, annual rate (%), and time in years.
When would I use this?▾
Short-term loans, some bonds, or when compounding is not applied.
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