Amortization Calculator
Amortization Calculator calculates payment; principal/interest totals; payoff date. Enter your assumptions above to get the primary answer first, followed by supporting metrics and detail where useful.
Inputs
Amortization CalculatorResults
Adjust the inputs, then use the primary action. The result will appear here.
What this calculator answers
Amortization Calculator calculates payment; principal/interest totals; payoff date. Enter your assumptions above to get the primary answer first, followed by supporting metrics and detail where useful.
How this calculation works
This tool uses loan amount; rate; term; start date; payment frequency; extra payment optional. It returns payment; principal/interest totals; payoff date. Headline results, charts, schedules, comparisons and exports are generated from the same normalized calculation state.
Worked example
Scheduled payment: 599.55 • Total interest: 115,838.19 • Payoff periods: 360
Assumptions
Unless the tool says otherwise, rates are annual percentages, currency inputs are denominations rather than automatic FX conversions, and projections are mathematical models rather than guarantees. Typed values remain authoritative even outside normal slider ranges.
Limitations
Results depend on the assumptions supplied. Real-world taxes, fees, rates, timing and provider rules can differ from simplified modeled inputs.
Sources & review
Changing-rule tools cite the official source, jurisdiction/effective period and verification date. Evergreen formula pages document their calculation method and review date. Last reviewed: 2026-09-25.
Privacy and review status
Financial inputs stay on this device by default and are not placed into analytics, advertising or error payloads. Review the methodology or report a calculation issue if something looks wrong. Methodology · Report a calculation issue.
Common questions
What does the Amortization Calculator calculate?
It calculates payment; principal/interest totals; payoff date. The result is based on the inputs and assumptions shown on this page.
What inputs does the Amortization Calculator use?
The main inputs are loan amount; rate; term; start date; payment frequency; extra payment optional. Change them to model a different scenario.