To avoid triggering traumatic memories from math class, use our credit card interest calculator to help you understand how much interest a carried balance will accrue or how much you might owe if ...

Use Excel in your rate card formulas to calculate discounts ... Functions include the RATE() function, which calculates the interest rate, and the PRODUCT() function, which returns the product ...

NerdWallet's credit card interest calculator can do the math for you. Start plugging in numbers, or read below for guidance on how to get the most accurate result. Whether you have a grace period ...