Use the free Affirm Payment Calculator on ToolVexa to split a purchase into equal monthly instalments. Enter the purchase amount, the number of months and the annual interest rate, and see the monthly payment and total cost.
How to Use
Enter the full purchase amount, how many monthly payments you want, and the annual interest rate. Use 0 if the plan charges no interest, then press Calculate.
Formula in Plain Words
With no interest, the monthly payment is simply the purchase amount divided by the number of months. With interest, the monthly rate is the annual rate divided by 12, and the standard loan payment formula spreads the amount plus interest evenly over the term.
Worked Example
With a purchase of $1,200 over 12 months at 12% per year, the monthly rate is 1%. The monthly payment is $106.62, the total paid is $1,279.44, and the interest paid is $79.44.
FAQs
Is this an official Affirm quote?
No. This is a general instalment estimate for planning only, not a lender quote or approval.
What happens if the rate is 0%?
The monthly payment is the purchase amount divided by the number of months, and the total paid equals the purchase amount.
Do fees change the result?
Yes. Any fees or late charges are not included here, so check the actual plan terms before you commit.