Interest Calculator
Quickly calculate interest on any amount. Choose between simple interest and compound interest methods.
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Simple vs Compound Interest
Simple Interest is calculated only on the principal amount. Compound Interest is calculated on the principal plus accumulated interest — it's "interest on interest."
Simple: I = P × r × t
Compound: A = P × (1 + r)ᵗ
Compound: A = P × (1 + r)ᵗ