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CurrencyConvert world currencies with the latest available exchange rates, a visible rate date, and no account or API key required.cm to inchesFor product dimensions, rulers, and screen specs. Exact: 1 in = 2.54 cm.cm to feet and inchesBest for human height, forms, sports profiles, and passport-style measurements.meters to feet and inchesFor height, room dimensions, product specs, and plans that need feet plus inches.mm to feet and inchesFor plans, product dimensions, and height measurements written in millimeters.mm to fractional inchesFor drill bits, fasteners, workshop measurements, and specs that use inch fractions.fractional inches to mmFor drill bits, fasteners, workshop measurements, and inch-fraction specs.kg to lbsFor body weight, luggage, gym plates, and shipping labels.kg to stone and poundsFor UK and Ireland body weight: kilograms to stone plus pounds.Celsius to FahrenheitFor weather, ovens, thermostats, and travel temperatures.Recipe VolumeFor recipe scaling, U.S. cups, milliliters, tablespoons, teaspoons, and fluid ounces.mm to inchesFor small parts, drill bits, fasteners, and specs.liters to gallonsFor fuel, aquarium volume, buckets, and liquid capacity.mph to kphFor road signs, driving, cycling, and race speeds.Tire PressureFor car, bike, and motorcycle tire placards, pumps, compressors, and pressure gauges.Download Time CalculatorEstimate transfer time from file size and download speed without tracking live network data.Mbps to MB/sEstimate download speed from an internet-plan Mbps number.MB/s to MbpsConvert file-transfer speeds shown as MB/s back to internet-plan Mbps.Aspect Ratio CalculatorFind the simplified width:height ratio for screens, images, video, and layouts.
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Length66 converterscm to inches, inches to cm, mm to inchesTemperature6 convertersCelsius to Fahrenheit, Fahrenheit to Celsius, Celsius to KelvinWeight42 converterskg to lbs, lbs to kg, kg to gramsVolume69 convertersliters to gallons, gallons to liters, liters to mLArea34 convertersacres to square feet, square feet to acres, square feet to m²Speed16 convertersmph to kph, kph to mph, mph to m/sTime24 convertershours to minutes, minutes to hours, seconds to minutesDigital35 convertersMB to GB, GB to MB, KB to MBData rate18 convertersMbps to Kbps, Kbps to Mbps, Mbps to GbpsAngle12 convertersradians to degrees, degrees to radians, degrees to turnsPressure23 converterspsi to bar, bar to psi, psi to kPaPower16 convertershp to kW, kW to hp, watts to kWForce10 convertersnewtons to lbf, lbf to newtons, kilonewtons to lbfTorque12 convertersnewton meters to lb ft, lb ft to newton meters, newton meters to lb inFrequency12 convertersrpm to Hz, Hz to rpm, kHz to HzEnergy14 convertersjoules to kJ, kJ to joules, kWh to joulesAcceleration10 convertersm/s² to g-force, g-force to m/s², ft/s² to m/s²Flow rate12 convertersL/min to gpm, gpm to L/min, L/s to L/minDensity10 converterskg/m³ to g/cm³, g/cm³ to kg/m³, g/mL to kg/m³Electric current8 convertersamps to mA, mA to amps, amps to µAVoltage8 convertersvolts to mV, mV to volts, kV to voltsResistance8 convertersohms to kΩ, kΩ to ohms, MΩ to ohmsIlluminance8 converterslux to foot-candles, foot-candles to lux, kilolux to lux
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Money & travel1 converters
Measurements17 converters
cm to feet and inchesBest for human height, forms, sports profiles, and passport-style measurements.meters to feet and inchesFor height, room dimensions, product specs, and plans that need feet plus inches.mm to feet and inchesFor plans, product dimensions, and height measurements written in millimeters.feet and inches to cmConvert height written as feet plus inches into centimeters.feet and inches to metersConvert mixed imperial height into meters for forms, sports profiles, and medical records.feet and inches to mmConvert feet plus inches into millimeters for drawings, specs, and fabrication.cm to inches1 cm = 0.3937 ininches to cm1 in = 2.54 cmmm to fractional inchesFor drill bits, fasteners, workshop measurements, and specs that use inch fractions.fractional inches to mmFor drill bits, fasteners, workshop measurements, and inch-fraction specs.mm to inches1 mm = 0.03937 inmm to cm1 mm = 0.1 cmmeters to feet1 m = 3.2808 ftmeters to inches1 m = 39.3701 infeet to inches1 ft = 12 inmiles to feet1 mi = 5,280 ftsquare feet to m²1 ft² = 0.0929 m²
Weight10 converters
kg to stone and poundsFor UK and Ireland body weight: kilograms to stone plus pounds.stone and pounds to kgConvert UK-style weight in stone plus pounds back to kilograms.kg to lbs1 kg = 2.2046 lblbs to kg1 lb = 0.45359 kgkg to grams1 kg = 1,000 ggrams to kg1 g = 0.001 kggrams to ounces1 g = 0.03527 ozounces to grams1 oz = 28.3495 glbs to ounces1 lb = 16 ozlbs to stone1 lb = 0.07143 st
Cooking & liquid9 converters
Recipe VolumeFor recipe scaling, U.S. cups, milliliters, tablespoons, teaspoons, and fluid ounces.mL to cups1 mL = 0.004227 cupcups to mL1 cup = 236.59 mLtablespoons to mL1 tbsp = 14.7868 mLteaspoons to mL1 tsp = 4.9289 mLfluid ounces to mL1 fl oz = 29.5735 mLliters to gallons1 L = 0.26417 galgallons to liters1 gal = 3.7854 Lquarts to liters1 qt = 0.94635 L
Travel & speed7 converters
Data & downloads15 converters
Download Time CalculatorEstimate transfer time from file size and download speed without tracking live network data.Mbps to MB/sEstimate download speed from an internet-plan Mbps number.MB/s to Mbps1 MB/s = 8 MbpsMbps to Kbps1 Mbps = 1,000 KbpsGbps to Mbps1 Gbps = 1,000 MbpsMbps to Gbps1 Mbps = 0.001 GbpsAspect Ratio CalculatorFind the simplified width:height ratio for screens, images, video, and layouts.MB to GB1 MB = 0.001 GBGB to MB1 GB = 1,000 MBGB to TB1 GB = 0.001 TBTB to GB1 TB = 1,000 GBbits to bytes1 bit = 0.125 Bbytes to bits1 B = 8 bitMB to MiB1 MB = 0.95367 MiBMiB to MB1 MiB = 1.0486 MB
Engineering12 converters
Tire PressureFor car, bike, and motorcycle tire placards, pumps, compressors, and pressure gauges.psi to bar1 psi = 0.06895 barpsi to kPa1 psi = 6.8948 kPabar to kPa1 bar = 100 kPahp to kW1 hp = 0.7457 kWnewtons to lbf1 N = 0.22481 lbfnewton meters to lb ft1 N m = 0.73756 lb ftm/s² to g-force1 m/s² = 0.10197 glb/ft³ to kg/m³1 lb/ft³ = 16.0185 kg/m³L/min to gpm1 L/min = 0.26417 gpmrpm to Hz1 rpm = 0.01667 Hzsquare mm to cubic mmArea becomes volume only when you add thickness.
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Length66 converters
Temperature6 converters
Weight42 converters
kg to lbs1 kg = 2.2046 lblbs to kg1 lb = 0.45359 kgkg to grams1 kg = 1,000 ggrams to kg1 g = 0.001 kggrams to mg1 g = 1,000 mgmg to grams1 mg = 0.001 ggrams to ounces1 g = 0.03527 ozounces to grams1 oz = 28.3495 gkg to ounces1 kg = 35.274 ozounces to kg1 oz = 0.02835 kgBrowse all 42 weight converters
Volume69 converters
liters to gallons1 L = 0.26417 galgallons to liters1 gal = 3.7854 Lliters to mL1 L = 1,000 mLmL to liters1 mL = 0.001 Lliters to cL1 L = 100 cLcL to liters1 cL = 0.01 Lliters to dL1 L = 10 dLdL to liters1 dL = 0.1 LmL to cups1 mL = 0.004227 cupcups to mL1 cup = 236.59 mLBrowse all 69 volume converters
Area34 converters
acres to square feet1 acre = 43,560 ft²square feet to acres1 ft² = 2.29568e-5 acresquare feet to m²1 ft² = 0.0929 m²m² to square feet1 m² = 10.7639 ft²square feet to yd²1 ft² = 0.11111 yd²yd² to square feet1 yd² = 9 ft²m² to yd²1 m² = 1.196 yd²yd² to m²1 yd² = 0.83613 m²mm² to in²1 mm² = 0.00155 in²in² to cm²1 in² = 6.4516 cm²Browse all 34 area converters
Speed16 converters
mph to kph1 mph = 1.6093 km/hkph to mph1 km/h = 0.62137 mphmph to m/s1 mph = 0.44704 m/sm/s to kph1 m/s = 3.6 km/hkph to m/s1 km/h = 0.27778 m/sm/s to mph1 m/s = 2.2369 mphknots to mph1 kn = 1.1508 mphmph to knots1 mph = 0.86898 knknots to kph1 kn = 1.852 km/hkph to knots1 km/h = 0.53996 knBrowse all 16 speed converters
Time24 converters
hours to minutes1 hr = 60 minminutes to hours1 min = 0.01667 hrseconds to minutes1 s = 0.01667 minminutes to seconds1 min = 60 shours to seconds1 hr = 3,600 sseconds to hours1 s = 0.000278 hrmilliseconds to seconds1 ms = 0.001 sseconds to milliseconds1 s = 1,000 msdays to hours1 day = 24 hrhours to days1 hr = 0.04167 dayBrowse all 24 time converters
Digital35 converters
Data rate18 converters
Mbps to Kbps1 Mbps = 1,000 KbpsKbps to Mbps1 Kbps = 0.001 MbpsMbps to Gbps1 Mbps = 0.001 GbpsGbps to Mbps1 Gbps = 1,000 MbpsMbps to KB/s1 Mbps = 125 KB/sKB/s to Mbps1 KB/s = 0.008 MbpsMB/s to Mbps1 MB/s = 8 MbpsGbps to GB/s1 Gbps = 0.125 GB/sGB/s to Gbps1 GB/s = 8 Gbpsbit/s to Kbps1 bit/s = 0.001 KbpsBrowse all 18 data rate converters
Angle12 converters
radians to degrees1 rad = 57.2958 degdegrees to radians1 deg = 0.01745 raddegrees to turns1 deg = 0.002778 turnturns to degrees1 turn = 360 degdegrees to gradians1 deg = 1.1111 gradgradians to degrees1 grad = 0.9 degradians to turns1 rad = 0.15915 turnturns to radians1 turn = 6.2832 radradians to gradians1 rad = 63.662 gradgradians to radians1 grad = 0.01571 radBrowse all 12 angle converters
Pressure23 converters
psi to bar1 psi = 0.06895 barbar to psi1 bar = 14.5038 psipsi to kPa1 psi = 6.8948 kPakPa to psi1 kPa = 0.14504 psibar to kPa1 bar = 100 kPakPa to bar1 kPa = 0.01 baratm to psi1 atm = 14.6959 psipsi to atm1 psi = 0.06805 atmmmHg to kPa1 mmHg = 0.13332 kPakPa to mmHg1 kPa = 7.5006 mmHgBrowse all 23 pressure converters
Power16 converters
hp to kW1 hp = 0.7457 kWkW to hp1 kW = 1.341 hpwatts to kW1 W = 0.001 kWkW to watts1 kW = 1,000 Whp to watts1 hp = 745.7 Wwatts to hp1 W = 0.001341 hpBTU (IT)/h to watts1 BTU (IT)/h = 0.29307 Wwatts to BTU (IT)/h1 W = 3.4121 BTU (IT)/hwatts to MW1 W = 1e-6 MWMW to watts1 MW = 1,000,000 WBrowse all 16 power converters
Force10 converters
newtons to lbf1 N = 0.22481 lbflbf to newtons1 lbf = 4.4482 Nkilonewtons to lbf1 kN = 224.81 lbflbf to kilonewtons1 lbf = 0.004448 kNnewtons to kgf1 N = 0.10197 kgfkgf to newtons1 kgf = 9.8066 Nnewtons to kilonewtons1 N = 0.001 kNkilonewtons to newtons1 kN = 1,000 Nlbf to kgf1 lbf = 0.45359 kgfkgf to lbf1 kgf = 2.2046 lbfBrowse all 10 force converters
Torque12 converters
newton meters to lb ft1 N m = 0.73756 lb ftlb ft to newton meters1 lb ft = 1.3558 N mnewton meters to lb in1 N m = 8.8507 lb inlb in to newton meters1 lb in = 0.11298 N mlb ft to lb in1 lb ft = 12 lb inlb in to lb ft1 lb in = 0.08333 lb ftnewton meters to oz in1 N m = 141.61 oz inoz in to newton meters1 oz in = 0.007062 N mlb ft to oz in1 lb ft = 192 oz inoz in to lb ft1 oz in = 0.005208 lb ftBrowse all 12 torque converters
Frequency12 converters
Energy14 converters
joules to kJ1 J = 0.001 kJkJ to joules1 kJ = 1,000 JkWh to joules1 kWh = 3,600,000 Jjoules to kWh1 J = 2.77778e-7 kWhkWh to BTU (IT)1 kWh = 3,412.14 BTU (IT)BTU (IT) to kWh1 BTU (IT) = 0.000293 kWhthermochemical calories to joules1 cal = 4.184 Jjoules to thermochemical calories1 J = 0.23901 calkcal to kJ1 kcal = 4.184 kJkJ to kcal1 kJ = 0.23901 kcalBrowse all 14 energy converters
Acceleration10 converters
m/s² to g-force1 m/s² = 0.10197 gg-force to m/s²1 g = 9.8066 m/s²ft/s² to m/s²1 ft/s² = 0.3048 m/s²m/s² to ft/s²1 m/s² = 3.2808 ft/s²in/s² to m/s²1 in/s² = 0.0254 m/s²m/s² to in/s²1 m/s² = 39.3701 in/s²mph/s to m/s²1 mph/s = 0.44704 m/s²km/h/s to m/s²1 km/h/s = 0.27778 m/s²Gal to m/s²1 Gal = 0.01 m/s²m/s² to Gal1 m/s² = 100 GalBrowse all 10 acceleration converters
Flow rate12 converters
L/min to gpm1 L/min = 0.26417 gpmgpm to L/min1 gpm = 3.7854 L/minL/s to L/min1 L/s = 60 L/minL/min to L/s1 L/min = 0.01667 L/sm³/h to L/min1 m³/h = 16.6667 L/minL/min to m³/h1 L/min = 0.06 m³/hcfm to m³/h1 cfm = 1.699 m³/hm³/h to cfm1 m³/h = 0.58858 cfmgph to L/h1 gph = 3.7854 L/hL/h to gph1 L/h = 0.26417 gphBrowse all 12 flow rate converters
Density10 converters
kg/m³ to g/cm³1 kg/m³ = 0.001 g/cm³g/cm³ to kg/m³1 g/cm³ = 1,000 kg/m³g/mL to kg/m³1 g/mL = 1,000 kg/m³kg/m³ to g/mL1 kg/m³ = 0.001 g/mLlb/ft³ to kg/m³1 lb/ft³ = 16.0185 kg/m³kg/m³ to lb/ft³1 kg/m³ = 0.06243 lb/ft³lb/in³ to g/cm³1 lb/in³ = 27.6799 g/cm³g/cm³ to lb/in³1 g/cm³ = 0.03613 lb/in³lb/gal to kg/L1 lb/gal = 0.11983 kg/Lkg/L to lb/gal1 kg/L = 8.3454 lb/galBrowse all 10 density converters