Units, measurements, and kitchen swaps.
Unit conversions come up constantly in cooking, home projects, and everyday life - converting between metric and imperial, or figuring out how many cups a recipe's grams translate to. These tools handle the conversion instantly, with the underlying factor shown so you can trust the number.
Calculate a screen's pixel density (PPI) from resolution and diagonal size.
Calculate the effective print resolution (DPI) for a photo at a given print size.
Convert between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles.
Convert between seconds, minutes, hours, days, weeks, and years.
Convert between Fahrenheit, Celsius, and Kelvin.
Convert oven temperatures between Celsius, Fahrenheit, and UK Gas Mark.
Convert rainfall depth over an area into total water volume.
Calculate the density of water at a given temperature.
Convert between kilograms, pounds, ounces, and grams.
Convert between liters, gallons, quarts, fluid ounces, cups, milliliters, teaspoons, and tablespoons.
Convert common baking ingredients between cups and grams.
Adjust a recipe's cooking time when your microwave's wattage is different from the recipe's.
Calculate the electricity cost of running an appliance, from its wattage, usage time, and your rate.
Convert between parts per million (ppm) and percent.
Convert between mph, km/h, m/s, and knots.
Convert between square feet, square meters, acres, and square yards.
Convert between bytes, KB, MB, GB, and TB.
Convert between PSI, bar, kPa, and atmospheres.
Also works as an nm to ft lb converter - convert between newton-meters (Nm), foot-pounds (ft-lb), and…
Convert between MPG and L/100km fuel economy.
Calculate gear inches and speed from wheel size, chainring, cog, and cadence.
Compare two tire sizes and see the resulting difference in diameter, circumference, and speedometer accuracy.
Calculate dew point, heat index, and wind chill from temperature, humidity, and wind speed.
Convert between currencies using static reference exchange rates, or enter your own rate for live accuracy.