How to choose which credit card to use
For a purchase you already planned, compare the cash value of the rewards on cards you hold. Multiply the purchase amount by each applicable reward rate. This calculator uses integer cents and rounds each reward to the nearest cent, with half cents rounded up.
A simple comparison
A $250 purchase earns $5 on a 2% card and $2.50 on a 1% card. The difference is $2.50. If both cards are paid in full and no other benefit changes the choice, the higher reward rate earns more.
How do points compare with cash back?
Convert a points rate to a cash-equivalent percentage using your own redemption value. At one cent per point, two points per dollar is equivalent to 2%. A higher redemption value is only useful if you can actually redeem at that value. This tool does not assume premium travel redemptions.
What could change the answer?
A welcome bonus, a spending cap, a merchant offer or purchase protection can matter more than a small difference in rewards. This calculator compares base rewards only. Use the bonus tracker to see how a planned purchase fits your bonus target.
What if I carry a balance?
Interest can exceed the value of rewards. This comparison does not calculate interest or account for the loss of a purchase grace period. The payoff planner compares repayment strategies using your balances, rates and monthly budget. Read the CFPB explanation of grace periods to understand interest on new purchases.