Money Counter

Standard binary floating-point arithmetic can't represent many decimal fractions like 0.10 or 0.25 exactly, so adding a string of coin values the ordinary way can accumulate tiny rounding errors that leave a total off by a fraction of a cent. This calculator converts every denomination to whole cents first and sums those as integers, which sidesteps the representation error entirely and guarantees an exact total.

Standard U.S. bank coin roll sizes vary by denomination because each roll is sized to hold a fixed dollar value, not a fixed piece count — 50 pennies makes exactly 50 cents' worth, while only 40 quarters makes exactly $10, and the perBundle count reflects whichever piece count reaches that roll's standard face value. Following these standard counts is what lets a roll be accepted at face value by a bank without recounting.

The over/short comparison stays inactive — the calculator simply reports your counted total, bills, coins, and piece counts without judging them against anything, and the variance label reads 'No expected total set'. Enter a nonzero expected total only when you actually want to check the drawer against a known starting or target figure.

No — bills and coins are tallied as two completely independent running totals throughout the calculation, so changing any coin denomination's count has zero effect on the Bills figure, and changing any bill denomination's count has zero effect on the Coin figure. The two totals only come together when they're added into the overall Total cash figure.