Car Lease Calculators
Quick, single-purpose calculators for the numbers on your lease. Every result is deterministic and computed in your browser.
Money Factor ↔ APR Converter
Convert a lease money factor to its real APR (and back). See the interest rate dealers rarely state out loud.
Lease vs. Buy Calculator
Compare the total cost of leasing against buying over the same term, including the residual buyout at lease-end.
Mileage Overage Calculator
See what going over your mileage allowance costs at turn-in versus buying extra miles up front.
Want the full picture?
The Car Lease Checker reconciles every number on your worksheet and flags where a dealer's quote doesn't add up.
Check my full lease