Unit Converters Calculators

Accurate instant conversions between feet, meters, pounds, kilograms, Fahrenheit, Celsius, gallons, liters, and more.

Updated 2026-10-01 · Published 2025-02-10

Distance & Dimensions

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Length Converter

Convert length and distance measurements seamlessly between US Customary, Imperial, and Metric units.

Length_target = Length_source × Conversion_FactorFree

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Area Converter

Convert land and floor surface areas between square feet, square meters, acres, hectares, and square yards.

1 sq m = 10.7639 sq ft ; 1 acre = 43,560 sq ft = 0.404686 hectaresFree

Mass & Weight

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Weight and Mass Converter

Convert weights and masses easily between pounds, kilograms, ounces, grams, stones, and metric tons.

1 lb = 0.45359237 kg ; 1 kg = 2.20462262 lbFree

Physics & Weather

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Temperature Converter

Convert temperatures between Fahrenheit, Celsius, and Kelvin with step-by-step formula explanations and common reference points.

°C = (°F - 32) × 5/9 ; °F = (°C × 9/5) + 32 ; K = °C + 273.15Free

Capacity & Fluid

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Volume and Capacity Converter

Convert liquid capacity and cubic volume between gallons, liters, milliliters, fluid ounces, cups, tablespoons, and cubic meters.

1 US Gallon = 3.78541 Liters = 128 US fl oz ; 1 UK Gallon = 4.54609 LitersFree

Physics & Motion

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Speed Converter

Convert travel and wind speeds between miles per hour (mph), kilometers per hour (km/h), knots, and meters per second.

1 mph = 1.609344 km/h ; 1 knot = 1.150779 mph = 1.852 km/hFree

Digital & Computing

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Data Storage Converter

Convert file sizes and digital memory capacities between Bytes, KB, MB, GB, and TB using both decimal (1,000) and binary (1,024) standards.

1 GB = 1,024 MB (binary) or 1,000 MB (decimal)Free

Physics & Engineering

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Pressure Converter

Convert pressure between pounds per square inch (PSI), bar, kilopascals (kPa), and atmospheres for tire pressures and engineering.

1 bar = 14.5038 PSI = 100 kPa = 0.986923 atmFree

Automotive & Travel

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Fuel Economy Converter

Compare car gas mileage ratings between US Miles per Gallon (MPG), UK Imperial MPG, and European/Canadian Liters per 100 km (L/100km).

L/100km = 235.215 / MPG_US ; MPG_UK = MPG_US × 1.20095Free

Cooking & Kitchen

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Oven Temperature Converter

Convert baking and roasting temperatures instantly between Fahrenheit (°F), Celsius (°C), Gas Mark, and Fan-assisted convection ovens with recommended heat bands.

°C = (°F - 32) × 5/9 | Fan °C = Regular °C - 20°C | Fan °F = Regular °F - 25°FFree

What Tools Are in the Unit Converters Calculation Suite?

Every tool in our Unit Converters cluster is designed for swift, unhindered problem solving. Whether you are browsing on a mobile phone during a shopping trip or balancing numbers on a desktop workstation, our calculators deliver instant results with step-by-step mathematical explanations.

Each unit converters calculator above shows its formula, a worked example with real numbers, and answers to frequently asked questions, so you can verify every result by hand.