Annuity Calculator
Real-time, production-ready annuity & amortization tool
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Inputs
Set known values and choose which variable to solve.
Solve for
Payment (PMT)
Interest Rate (r)
Number of Periods (n)
Present Value (PV)
Future Value (FV)
Annuity Type
Annuity — End of period (Immediate)
Annuity — Beginning of period (Due)
Payment Frequency
Monthly (12)
Quarterly (4)
Semiannual (2)
Annual (1)
Weekly (52)
Daily (365)
Nominal APR (%)
or Effective
Nominal
Effective
If nominal, compounding = frequency
Present Value (PV)
Future Value (FV)
Periodic Payment (PMT)
Number of Periods (n)
Inflation (%)
Tax on interest (%)
Show amortization schedule
Enable Scenario Comparison
Precision
2
4
6
Save Preset
Load Preset
Reset
Results
Real-time output — updates as you type
Copy
Export CSV
PMT
—
Rate (period)
—
Total Interest
—
Real Value (adj. inflation)
—
Summary
Amortization / Contribution Schedule
Payment-by-payment breakdown (interest, principal, tax, balance)
Print
#
Payment
Interest
Tax
Principal
Balance
Scenario Comparison
Compare Scenario A (current) vs Scenario B (alternate)
Scenario B PV
Scenario B PMT
Scenario B APR (%)
Update B
Comparison Summary
Enable "Scenario Comparison" in Inputs to show comparison tools.