Conversion, calculation, and general-purpose tools.
Live currency converter with 30 currencies. Historical exchange rate charts, ECB reference rates, and instant conversion for USD, EUR, GBP, JPY, KRW, and more.
Convert 14 unit categories: length, weight, temperature, volume, cooking, area, speed, fuel economy, time, energy, pressure, angle, frequency & data. Quick presets, formula display, conversion history, and one-click copy.
Calculate tips instantly, split bills by party size, and see per-person totals. Quick tip reference, uneven splits, and a multi-item receipt splitter.
Calculate percentages with 10 modes: X% of Y, percentage change, reverse percentage, decimal/fraction converter, percent error, tip calculator, and step-by-step solutions.
Calculate sale prices, stacked discounts, unit prices, and Buy X Get Y deals. Includes sales tax with state presets.
Live currency converter with 30 currencies. Historical exchange rate charts, ECB reference rates, and instant conversion for USD, EUR, GBP, JPY, KRW, and more.
Convert 14 unit categories: length, weight, temperature, volume, cooking, area, speed, fuel economy, time, energy, pressure, angle, frequency & data. Quick presets, formula display, conversion history, and one-click copy.
Calculate tips instantly, split bills by party size, and see per-person totals. Quick tip reference, uneven splits, and a multi-item receipt splitter.
Calculate percentages with 10 modes: X% of Y, percentage change, reverse percentage, decimal/fraction converter, percent error, tip calculator, and step-by-step solutions.
Calculate sale prices, stacked discounts, unit prices, and Buy X Get Y deals. Includes sales tax with state presets.