The average credit card interest rate, known as APR, is a key gauge of borrowing costs for households. It moves in response to Federal Reserve decisions, inflation, and bank funding costs, so it rarely stays still. Monitoring the national average helps shoppers compare offers, estimate interest on revolving balances, and plan payoff timelines. Because APRs vary by card type and credit profile, understanding the range—rather than any single number—equips consumers to evaluate options with confidence. Watching trend shifts over time also provides insight into the broader economy and how lenders price risk in changing markets.