Cash Back or Low Interest Calculator
Compare cash back rewards vs low interest rates to find the better option.
Credit Card Information
Comparison
These figures compare two distinct, choose-one strategies — not both cards at once. The Cash Back figure assumes you pay your balance in full each month (no interest); the Low Interest figure assumes you carry the balance you entered. Pick the strategy that matches how you actually use a card.
Cash Back Card
Low Interest Card
Low interest saves $120 per year
About This Calculator
The Cash Back or Low Interest Calculator helps you determine whether a cash back credit card or a low interest rate card is better for your financial situation. This decision depends on your spending habits and whether you carry a balance.
If you pay off your balance in full each month, cash back cards typically provide more value. If you carry a balance, low interest rates may save you more money than cash back rewards.
Formula & Calculation Method
Cash Back vs Low Interest Calculation:
Annual Cash Back = Monthly Spending × 12 × Cash Back Rate
Annual Interest = Carried Balance × Interest Rate
Net Benefit = Annual Cash Back - Annual Interest
Better Option = Higher Net Benefit
These two lines describe two distinct, mutually exclusive strategies — you choose one card and one behavior, not both at the same time. The cash back line assumes you pay your balance in full each month (so you pay no interest) and earn rewards on spending. The low interest line assumes you carry the balance you entered and pay interest on it. The net benefit shows how much better off you are choosing the cash back card and paying in full versus carrying a balance on the low interest card.
How to Use This Calculator
- Enter Monthly Spending: Input your average monthly credit card spending.
- Enter Cash Back Rate: Input the cash back percentage offered by the cash back card.
- Enter Low Interest Rate: Input the annual interest rate of the low interest card.
- Enter Carry Balance: Input the average balance you carry month-to-month (if any).
- View Results: Compare annual cash back vs interest paid and see which option is better.
Frequently Asked Questions
Should I choose cash back or low interest?
If you pay your balance in full each month, cash back cards are typically better. If you carry a balance, low interest cards can save more money than cash back rewards provide.
What if I sometimes carry a balance?
If you occasionally carry a balance, calculate based on your average balance. You may want a card that offers both cash back and a competitive interest rate, or use different cards for different purposes.
Are there cards that offer both?
Some cards offer both cash back and competitive interest rates, though typically not the best of both. Consider your spending and payment habits to choose the best overall option.
How much cash back can I earn?
Cash back rates typically range from 1-5%, with some cards offering higher rates for specific categories. Annual cash back depends on your spending level and the card's reward structure.
NumCalculators Editorial Team
Multi-disciplinary Expert Team
The NumCalculators Editorial Team consists of subject matter experts across various fields who review and verify the accuracy of our calculators. Each calculator undergoes rigorous testing and validation before publication.