Money Factor Calculator (Lease Rate)

Quick answer

The money factor calculator converts a car lease money factor into the equivalent annual interest rate (APR) and back, and estimates the monthly finance charge on a lease.

$
$
Equivalent APR
%
Monthly finance charge
$ 120.00

Car dealers quote lease financing as a money factor, a small decimal like 0.00250, which hides the fact that it equals a 6% interest rate. Multiplying by 2,400 makes it easy to compare with loan rates.

How to use the Money Factor Calculator

  1. Money factor
  2. Net capitalized cost
  3. Residual value
  4. Every result field is editable: type into Equivalent APR and Money factor plus every other field update to match.

Results update as you type, and every field accepts the units shown in its menu.

How it works

Enter the money factor (or type an APR into the result), and optionally the capitalized cost and residual value.

Inputs explained

Field What to enter
Money factor A number
Net capitalized cost Amount in your currency
Residual value Amount in your currency

What each result means

  • Equivalent APR = [Money factor]×2400
  • Monthly finance charge = ([Net capitalized cost] + [Residual value])×[Money factor]

Example values

How the main result changes when Money factor changes and everything else stays at the example values above:

Money factor Equivalent APR (%)
0.0013 3
0.0019 4.5
0.0025 6
0.0031 7.5
0.0038 9
0.005 12

Formula

APR = money factor × 2,400 Money factor = APR ÷ 2,400 Monthly finance charge = (net capitalized cost + residual value) × money factor

Worked example

Inputs: Money factor: 0.0025; Net capitalized cost: $30,000; Residual value: $18,000.
Results: Equivalent APR = 6 %; Monthly finance charge = $120.00.

Frequently asked questions

How do I convert money factor to APR?

Multiply by 2,400: 0.00250 × 2,400 = 6%.

Can I negotiate the money factor?

Yes. Dealers often mark it up above the bank's buy rate.

Why 2,400?

It converts the lease's average-balance finance charge into an annual percentage.

Cite this calculator

Speedy Calculator. (2026). Money Factor Calculator (Lease Rate). Speedy Calculator. https://speedycalculator.com/calculators/finance/money-factor/