How to use the Cashback calculator
Enter eligible purchase, and cashback (%). Choose the currency for your inputs and read the result as you change the values.
How it works and formula
Cashback = eligible purchase × reward rate. Effective cost = purchase − cashback.
Worked example
| Eligible purchase | 120 |
|---|---|
| Cashback (%) | 3 |
Result
Cashback $3.60 · Effective cost $116.40
Choosing your inputs
Use the amount eligible for cashback. Check whether the offer excludes taxes, shipping, gift cards or certain products. If there is a reward cap, compare the calculated cashback with that cap.
How to interpret the result
At 3% on $120, cashback is $3.60 and effective cost is $116.40. The checkout charge may still be $120 because the reward can arrive later. Compare effective costs only when you expect to qualify for the reward.
Frequently asked questions
What if part of my order is excluded?
Enter only eligible spending. If the reward has a cap, check the result against your offer’s cap.
How do returns change the estimate?
Recalculate with the eligible amount you keep. The provider may adjust or reverse the reward after a return.