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Type “150 lbs to kg”, “45 N·m to lbf·ft” or “25 C to F”. Instant answers, clear US vs UK units, no sign-up.
150 pounds =68.039 kg
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All converters- Pounds → kilograms1 lb = 0.45359 kg
- Degrees Celsius → degrees Fahrenheit1 °C = 33.8 °F
- Centimetres → inches1 cm = 0.3937 in
- Pounds per square inch → bar1 psi = 0.068948 bar
- Kilometres → miles1 km = 0.62137 mi
- Newton metres → pound-force feet1 N·m = 0.73756 lbf·ft
- Feet → metres1 ft = 0.3048 m
- BTU per hour → watts1 BTU/h = 0.29307 W
- Miles per hour → kilometres per hour1 mph = 1.6093 km/h
- Kilopascals → pounds per square inch1 kPa = 0.14504 psi
- US cups → millilitres1 cup (US) = 236.59 mL
- Joules → calories1 J = 0.23901 cal
- Kilograms → pounds1 kg = 2.2046 lb
- Metres per second → kilometres per hour1 m/s = 3.6 km/h
- Litres → US gallons1 L = 0.26417 gal (US)
- Pounds per square inch → megapascals1 psi = 0.0068948 MPa
- Kilowatts → horsepower1 kW = 1.341 hp
- Kilograms per cubic metre → pounds per cubic foot1 kg/m³ = 0.062428 lb/ft³
- Ounces → grams1 oz = 28.35 g
- Watts per metre kelvin → BTU per hour foot °F1 W/(m·K) = 0.57779 BTU/(h·ft·°F)
- Miles per US gallon → litres per 100 km1 mpg (US) = 235.21 L/100 km
Explore 38 categories
Grouped by what you’re doing. Categories marked “coming soon” are planned and not yet available.
Engineering
Pressure, stress, torque, force, energy and power
Thermal & fluids
Flow, density, viscosity and heat transfer
- Flow rate (volume)L/min, gpm, cfm, m³/h.
- Flow rate (mass)kg/s, kg/h, lb/h, t/h.
- Densitykg/m³, g/cm³, lb/ft³, lb/gal.
- Viscosity (dynamic)Pa·s, cP, poise.
- Viscosity (kinematic)cSt, mm²/s, m²/s, stokes.
- Thermal conductivityW/(m·K), BTU/(h·ft·°F).
- Heat fluxW/m², BTU/(h·ft²).
- Heat transfer coefficientW/(m²·K), U-values, BTU/(h·ft²·°F).
Electrical
Voltage, current, resistance, capacitance, inductance and charge
- AngleDegrees, radians, gradians.
- FrequencyHz, kHz, rpm, rad/s.
- Light (illuminance)Lux and foot-candles.
- ChemistryComing soonConcentration, molar mass (planned).
Technology
File sizes and internet speeds
- Data storageMB, GB, TB, GiB, bits and bytes.
- Data transferMbps, MB/s, Gbps.
- Screen resolutionComing soonPPI, aspect ratios (planned).
Specialized
Magnetism and radiation
- CookingCups, tablespoons, teaspoons, mL.
- Running pacemin/km ↔ min/mile ↔ speed.
- Fuel economympg (US/UK), L/100 km, km/L.
- FitnessComing soonBody measures, calories burned (planned).
- Clothing sizesComing soonUS/UK/EU sizes (planned — sizes vary by brand).
Why Unitglide
Exact, sourced factors
Every unit uses its defining value from NIST or the BIPM SI Brochure, with the formula shown.
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Frequently asked questions
How do I use the smart converter?
Type a value with its unit and the unit you want, such as “150 lbs to kg”, “25 C to F” or “2 cups in ml”. You can also type just “10 km” to see it in several units at once, or feet and inches like 5'10" to get centimetres.
Are US and UK units different?
Some are. US and imperial gallons, pints, cups, fluid ounces and tons have different sizes. Choose “US”, “UK imperial” or “Metric” next to the smart converter and the ambiguous words follow that choice. Every unit is labelled.
Where do the conversion factors come from?
From exact definitions published by NIST (SP 811 and Handbook 44) and the BIPM SI Brochure. Conversions run entirely in your browser, so they work offline once the page has loaded.
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Only on your own device. Recent conversions and favourites are saved in your browser’s local storage and never sent to a server. You can clear them at any time.