How to Calculate Auto Loan
What is Auto Loan?
Auto loans use the standard amortisation formula. Monthly payment = P × r(1+r)^n / ((1+r)^n − 1). Longer terms lower monthly payments but increase total interest significantly.
Formula
M = P × r(1+r)^n / ((1+r)^n − 1)
- M
- P × r(1+r)^n / ((1+r)^n − 1) — P × r(1+r)^n / ((1+r)^n − 1)
- P
- P value — Variable used in the calculation
Step-by-Step Guide
- 1M = P × r(1+r)^n / ((1+r)^n − 1)
- 2Total interest = (M × n) − P
Worked Examples
Input
£15,000 at 7.9% for 48 months
Result
£364/month · £2,472 total interest
Frequently Asked Questions
What is Auto Loan?
Auto loans use the standard amortisation formula. Monthly payment = P × r(1+r)^n / ((1+r)^n − 1)
How accurate is the Auto Loan calculator?
The calculator uses the standard published formula for auto loan. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Auto Loan calculator use?
This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Auto Loan calculator use?
The core formula is: M = P × r(1+r)^n / ((1+r)^n − 1). Each step in the calculation is shown so you can verify the result manually.