Converters calculators

Exact unit conversions with reference charts.

CM to inches Exact ÷2.54, with feet & inches KG to lbs Exact definition, not the 2.2 shortcut Meters to feet Rooms, pools, and altitudes KM to miles With the 5K/marathon chart °C to °F Fevers, weather, and oven marks ML to cups The baking chart, US cup honest KM/H to MPH Speed limits and treadmill paces MB to GB Decimal vs binary, told honestly Inches to CM Exact ×2.54 — screens, sewing, DIY Lbs to KG Bodyweight and luggage, exact definition Feet to meters Ceilings to altitudes, exact ×0.3048 Miles to KM Races and road trips, exact ×1.609 °F to °C Fevers and ovens — (°F−32)×5⁄9 Cups to ML US recipes in metric, fractions included MPH to KM/H US limits and treadmills, exact GB to MB Plans and drives — the ×1,000 direction Oz to grams Weight oz for recipes — exact 28.3495 Grams to oz Metric recipes into US kitchens ML to oz US fluid ounces — cans and carry-ons Oz to ML Cocktails and bottles — ×29.5735 Stone to KG UK body weight into metric, exact KG to stone With the stones-and-pounds split Liters to gallons US gallons — fuel and tanks Gallons to liters Exact ×3.785411784, mpg caveats MM to inches Workshop sizes with fraction chart Inches to MM Fractions in, exact metric out CM to feet Heights with the ft-and-inches split Feet to CM Heights and rooms — exact ×30.48 Yards to meters Fabric and fairways — exact ×0.9144 Meters to yards Pools and pitches, exact division
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Every converters calculator here follows the same rules: results update live as you type, the formula is shown with a worked example, and the math runs entirely in your browser — nothing you enter is uploaded anywhere. More converters calculators are added regularly; each one is unit-tested against published reference values before it ships.