Basis Point Calculator

One basis point equals 0.01%, so 100 bps equals 1%. Bps remove the ambiguity in talking about a percent of a percent. If a yield moves from 4% to 5%, that is a 100 bps change in absolute terms or a 25% change in relative terms, and the two numbers say very different things. Saying 'the yield rose 100 bps' is unambiguous. Saying 'the yield rose 1 percent' is not (1 percentage point or 1 percent of 4%?). Bps make rate changes precise enough to trade on.

The Federal Open Market Committee historically adjusts the federal funds target rate in 25 bps (0.25 percentage point) steps, which gives the economy time to absorb each change. 50 bps and 75 bps moves are reserved for faster cycles. The Fed has used 50 bps moves at major turning points (2022 hiking cycle, 2024 cutting cycle) and 75 bps moves during the inflation surge of 2022. A 100 bps move is rare and signals an emergency response, like the March 2020 cut at the start of the COVID shock.

A corporate bond yielding 6.50% when the matching-maturity Treasury yields 4.25% trades at a spread of 225 bps over Treasuries. Investment-grade spreads sit around 100 to 200 bps in normal markets, high-yield spreads run 300 to 600 bps, and distressed credit can blow out past 1,000 bps. Spreads in bps let traders compare risk premia across bonds and across cycles without restating the absolute yield each time.

On a $400,000, 30-year mortgage, a 25 bps rate increase (say from 6.50% to 6.75%) raises the monthly payment by about $66 and total interest paid over 30 years by roughly $24,000. The dollar-impact mode shows the straight-line annual cost on a fixed balance, which is the right number for floating-rate debt or short-term refinance decisions. For a fixed-rate mortgage held to term, multiply the annual impact by the average outstanding balance ratio (roughly 0.55 for a 30-year loan) to estimate lifetime cost.

Use bps for any small or precise change in an interest rate, yield, spread, or fee (rate hikes, expense ratios, performance vs benchmark, credit-spread moves). Use percent for large changes, returns, allocations, and anything you would say in everyday speech. A 25 bps fee reduction sounds modest, a 0.25% fee cut sounds the same, but a fund manager beating the benchmark by 200 bps reads more naturally than '2 percent', because the 2% is itself a percent of returns, not an absolute level. The rule of thumb: if your audience trades rates for a living, use bps; if not, use percent.