Alcohol Proof Converter
US proof, UK proof, and ABV both ways.
Unit Converters
Length and temperature conversions with the exact factors used.
Angle Converter
Convert degrees, radians, gradians, and turns instantly.
Area Converter
Convert acres, hectares, square feet, square meters, and more instantly.
AU Converter
Swap AU, km, miles, and light-minutes.
Beaufort Scale Calculator
Beaufort force 0 to 12 from wind speed, with effects.
Blood Sugar Converter
Convert blood glucose between mg/dL and mmol/L with the clinical factor 18.
Braille Converter
Text to Grade 1 braille Unicode and back, with cell counts.
Bushel Weight Calculator
Pounds to bushels by grain test weight with tons.
Butter Converter
Butter sticks, cups, tbsp, oz, grams, pats converted.
Carat Weight Converter
Carat price, grams, and points from stone weight.
CSS Unit Converter
Convert px, pt, pc, inches, cm, and mm with CSS factors.
Egg Size Converter
Egg weight and large equivalents from count and size.
Energy Converter
Convert joules, calories, kWh, BTU, and therms with exact factors.
Flour Weight Converter
Flour cups, tbsp, oz, grams converted by type.
Force Unit Converter
Convert N, dyne, kgf, lbf, ozf, and kip with exact factors.
Gold Purity Calculator
Gold percent, parts, and alloy from karat.
Horse Height Converter
Horse hands, inches, and cm converter.
Length Converter
Convert mm, cm, m, km, inches, feet, yards, and miles with exact factors.
Military Time Converter
Convert 24 hour time to 12 hour AM/PM and back, with minutes math.
Octane Rating Converter
US AKI pump octane from RON and MON.
Paper Size Converter
A4, A3, Letter, Legal, Tabloid dims, area, and scale.
Platinum Purity Calculator
Platinum percent and alloy from fineness.
Power Converter
Convert watts, kilowatts, horsepower, PS, and BTU per hour.
PPM Converter
Swap ppm, mg/L, percent, and ppb for water.
Pressure Converter
Convert psi, bar, kPa, atmospheres, and mmHg with exact factors.
Ring Size Converter
US, EU, diameter, and circumference ring conversions.
Scientific Notation Converter
Convert numbers to and from a times ten to the power form.
Shoe Size Converter
US, UK, EU, JP shoe sizes from foot cm.
Speed Converter
Convert km/h, mph, m/s, knots, and ft/s with exact factors.
Survey Length Converter
Survey chains, links, rods, and furlongs converted with exact factors.
Temperature Converter
Convert Celsius, Fahrenheit, and Kelvin with the exact formulas and key reference points.
Time Converter
Convert milliseconds, seconds, minutes, hours, days, and weeks exactly.
Torque Converter
Convert newton meters, foot pounds, inch pounds, and kgf m.
Troy Ounce Converter
Convert troy ounces, pennyweights, grains, grams, and kilos.
Vitamin D Converter (IU to mcg)
Convert vitamin D between IU and micrograms with the 40 IU factor.
Volume Converter
Convert ml, liters, cups, fluid ounces, spoons, and gallons for cooking.
Weight Converter
Convert kilograms, grams, pounds, ounces, and stone with exact factors.