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Interest Rate Calculator
Calculate simple and compound interest for loans and investments
Simple Interest
Compound Interest
Effective Rate
Simple Interest: A = P(1 + rt)
Principal Amount ($):
Annual Interest Rate (%):
Time Period (years):
Calculate Simple Interest
Compound Interest: A = P(1 + r/n)^(nt)
Principal Amount ($):
Annual Interest Rate (%):
Time Period (years):
Compounding Frequency:
Annually
Semi-annually
Quarterly
Monthly
Daily
Calculate Compound Interest
Effective Annual Rate: (1 + r/n)^n - 1
Nominal Interest Rate (%):
Compounding Periods per Year:
1 (Annually)
2 (Semi-annually)
4 (Quarterly)
12 (Monthly)
365 (Daily)
Calculate Effective Rate
Interest Calculation Results
Final Amount:
$0.00
Interest Earned:
$0.00
Effective Rate:
0%
Total Return:
0%