Rigzone.com has made it easier than ever to convert between hundreds of common and not-so-common oilfield measurements using our powerful yet simple-to-use online oil and gas conversion calculator. To start using the calculator now, click here. The table below contains all the units of measurement available in the conversion calculator. If you would like to suggest additional measurements for inclusion in the calculator please send an email to info@rigzone.com with the units of measurement, abbreviation, and any known conversion factors.

Basic Conversions

Acceleration Centimeter per Square Second cm/s2 Foot per Square Second ft/s2 Galileo gal Grav grav G-unit G Inch per Square Second in/s2 Kilometer per Hour per Second kph/s Kilometer per Square Second km/s2 Knot per Second knot/s Meter per Square Second m/s2 Mile per Hour per Second mph/s Mile per Square Hour mi/hr2 Mile per Square Second mi/s2 Millimeter per Square Second mm/s2 Angle Degree deg Grad grad Mil mil Minute min Point pt Radian rad Second sec Area Acre acre Hectare ha Square Centimeter cm2 Square Decimeter dm2 Square Foot ft2 Square Inch in2 Square Kilometer km2 Square Meter m2 Square Mile mi2 Square Millimeter mm2 Square Yard yd2 Cost Rate Dollars per Day $/d Dollars per Hour $/hr Thousand Dollars per Day 1000$/d Decimal Number Prefix Base Unit 0 Centi c Deca da Deci d Giga G Hecto h Kilo k Mega M Micro mic Milli m Density Gram per Cubic Centimeter g/cm3 Gram per Liter g/L Kilogram per Cubic Centimeter kg/cm3 Kilogram per Cubic Meter kg/m3 Kilogram per Liter kg/L Ounce per Cubic Foot oz/ft3 Ounce per Cubic Inch oz/in3 Pound per Cubic Foot lb/ft3 Pound per Cubic Inch lb/in3 Pound per U.S. Gallon lb/gal Slug per Cubic Foot slug/ft3 Slug per Cubic Inch slug/in3 Specific Gravity S.G. Water Density H2O Distributed Force Deka Newton per Meter daN/m Kilogram per Meter kg/m Kilonewton per Centimeter kN/cm Kilopound per Inch klb/in Newton per Meter N/m Poundforce per Feet lbf/ft Energy British Thermal Units BTU Calorie cal Cubic Feet of Natural Gas nat gas ft3 Foot Pound ft-lb Foot Poundal ft-poundal GigaJoule gJ Horsepower Hour HP-hr Joule J Kilocalories kcal Kilogram-force Meter kg-m KiloJoule kJ KiloJoule kJ Kilowatt Hour kW-hr Liter Atmosphere L-atm MegaJoules mJ Newton Meter Nm Therm therm Thermie thermie Ton of Explosive ton-exp Tonne of Coal Equivalent tce Tonne of Oil Equivalent toe Watthour W-hr Flowrate - Mass Gram per Day g/day Gram per Hour g/hr Gram per Minute g/min Gram per Second g/sec Kilogram per Day kg/day Kilogram per Hour kg/hr Kilogram per Minute kg/min Kilogram per Second kg/sec Pound per Day lb/day Pound per Hour lb/hr Pound per Minute lb/min Pound per Second lb/sec Ton (Long) per Day ton/day Ton (Long) per Hour ton/hr Ton (Long) per Minute ton/min Ton (Metric) per Day ton/day Ton (Metric) per Hour ton/hr Ton (Metric) per Minute ton/min Ton (Short) per Day ton/day Ton (Short) per Hour ton/hr Ton (Short) per Minute ton/min Flowrate - Volume Barrels per Day BPD Barrels per Hour BPH Barrels per Minute BPM Barrels per Second BPS Cubic Feet per Day ft3/day Cubic Feet per Hour ft3/hr Cubic Feet per Minute ft3/min Cubic Feet per Second ft3/sec Cubic Meter per Minute m3/min Cubic Meters per Day m3/day Cubic Meters per Hour m3/hr Cubic Meters per Second m3/sec Gallons per Day gal/day Gallons per Hour gph Gallons per Minute gpm Gallons per Second gal/sec Frequency Gigahertz gHz Hertz Hz Kilohertz kHz Megahertz mHz Radian/hour rad/hr Radian/minute rad/min Radian/second rad/sec Revolutions/hour RPH Revolutions/minute RPM Revolutions/second RPS Length Centimeter cm Decimeter dm Dekameter dam Fathom fath Feet ft Hectometer hm Inch in Kilometer km League leag Meter m Miles mi Millimeter mm Nautical League nleag Nautical Mile nm Yard yd Momentum Gram-Centimeter per Second g.cm/sec Kilogram-Meter per Hour kg.m/hr Kilogram-Meter per Second kg.m/sec Pound-Foot per Hour lb.ft/hr Pound-Foot per Second lb.ft/sec Pound-Inch per Second lb.in/sec Pressure Atmosphere atm Bar bar Centimeter of Mercury cm Hg Centimeter of Water cm H2O Dyne per Square Centimeter dyne/cm2 Foot of Air (0 Celcius) ft air Foot of Mercury (0 Celcius) ft Hg Foot of Water (4 Celcius) ft H2O Inch of Air (0 Celcius) in air Inch of Mercury (0 Celcius) in Hg Inch of Water (4 Celcius) in H2O Kilogram-force per Square Centimeter kg/cm2 Kilogram-force per Square Meter kg/m2 KiloPascal kPa Mega Pascal MPa Meter of Mercury m Hg Meter of Water m H2O Millibar mbar Millimeter of Mercury (0 Celcius) mmHg Millimeter of Water (4 Celcius) mmH2O Newton per Square Centimeter N/cm2 Newton per Square Meter N/m2 Newton per Square Millimeter N/mm2 Pascal Pa Pound-force per Square Foot psf Pound-force per Square Inch psi Torr torr Time Day day Decade decade Hour hr Minute min Second sec Year yr Torque Foot Ounce-force ft-oz Foot Pound-force ft-lb Inch Ounce-force in-oz Inch Pound-force in-lb Kilogram-force Centimeter kg-cm Kilogram-force Meter kg-m KiloNewton Meter kN-m Newton Centimeter N-cm Newton Meter N-m Volume Barrel (Petroleum) bbl Bucket bucket Bushel (U.S.) bu Cubic Centimeter cm3 Cubic Foot ft3 Cubic Inch in3 Cubic Meter m3 Cubic Millimeter mm3 Cubic Yard yd3 Cup C Dram dr Drum drum Fluid Ounce fl oz Gallon gal Gill (U.S.) gi Imperial (UK) Gallon UK gal Kiloliter kL Liter L Milliliter ml Pint Pt Quart - Dry qt Quart - Liquid qt Tablespoon tbsp Teaspoon tsp Tonne of Oil Equivalent toe Weight Carat ct Centigram cg Decigram dg Dram dram Grain gr Gram g Kilogram kg Kip kip Long Ton lt Metric Ton mt Milligram mg Ounce oz Pound lb Slug slug Ton ton Tonne mt Troy Ounce toz Weight per Unit Length Kilogram per Centimeter kg/cm Kilogram per Meter kg/m Pound per Foot lb/ft Pound per Inch lb/in

Drilling Conversions

Axial Damping Coefficient Newton Second per Meter N-sec/m Pound Second per Inch lb-s/in Axial Spring Constant Newton per Meter N/m Pound per Inch lb/in Dogleg deg/100ft deg/100ft deg/30m deg/30m Drilling Rate Feet per Day ft/d Feet per Hour ft/hr Feet per Minute ft/min Feet per Second ft/s Meter per Day m/d Meter per Hour m/hr Meter per Minute m/min Meter per Second m/s Footage Cost Dollar per Feet $/ft Dollar per Meter $/m Thousand Dollars per Feet $1000/ft Thousand Dollars per Meter $1000/m Mud Weight Gram per Cubic Centimeter g/cm3 Grams per Liter g/L Kilogram per Cubic Meter kg/m3 Kilogram per Liter kg/L KiloPascal per Meter kPa/m Pound per Cubic Feet lb/ft3 Pounds per Barrel lb/bbl Pounds per Gallon lb/gal Pounds per Square Inch per Feet psi/ft Pounds per Square Inch per hundred Feet psi/100ft Specific Gravity S.G Pressure Gradient KiloPascal kPa Mega Pascal per Minute MPa/m Pascal per Minute Pa/m Pounds per Gallon ppg Pounds per Square Inch per Feet psi/ft Pumping and Flow Rate Barrel per Hour bbl/hr Barrel per Minute bbl/min Cubic Feet per Minute ft3/min Cubic Meter per Hour m3/hr Cubic Meter per Minute m3/min Gallon per Hour gal/hr Gallons per Minute gpm Liter per Hour L/hr Liter per Minute L/min Torsional Damping Coefficient Newton Meter Second per Radian N-m-s/rad Pound Inch Second per Radian lb-in-s/rad Torsional Spring Constant Newton Meter per Radian N-m/rad Pound Inch per Radian lb-in/rad Yield Slurry Cubic Feet per Sack ft3/sk Cubic Meters per Sack m3/sk Gallons per Sack gal/sk

Fluid Conversions

Crude Oil Barrel (Petroleum) bbl Barrel of Oil Equivalent BOE Gallon gal Kiloliter kL Million Barrels of Oil Equivalent MMBOE Thousand Barrels of Oil Equivalent KBOE Tonne of Oil Equivalent toe Fluid Consistency dyne-s^n/cm2 dyne-s^n/cm2 eq.cp eq.cp lbf-s^n/100ft2 lbf-s^n/100ft2 lbf-s^n/ft2 lbf-s^n/ft2 Pa-s^n Pa-s^n Fluid Velocity Feet per Day ft/d Feet per Hour ft/hr Feet per Minute ft/min Feet per Second ft/s Meter per Day m/d Meter per Hour m/hr Meter per Minute m/min Meter per Second m/s Fluid Yield Point Dyne per Square Centimeter dyne/cm2 KiloPascal kPa Mega Pascal MPa Pound Force per Hundred Square Feet lbf/100ft2 Liquid Production Rate Barrels per Day BPD Barrels per Hour BPH Barrels per Minute BPM Barrels per Second BPS Cubic Feet per Day ft3/day Cubic Feet per Hour ft3/hr Cubic Feet per Minute ft3/min Cubic Feet per Second ft3/sec Cubic Meters per Day m3/day Cubic Meters per Hour m3/hr Cubic Meters per Minute m3/min Gallons per Day gal/day Gallons per Hour gph Gallons per Minute gpm Gallons per Second gal/sec UK Gallons per Day UK gal/day UK Gallons per Hour UK gal/hr UK Gallons per Minute UK gal/min UK Gallons per Second UK gal/sec Viscosity Centipoise cp Gram per Centimeter Second g/(cm.s) Kilogram per Meter Hour kg/(m.hr) Kilogram per Meter Second kg/(m.s) Kilogram-force Second per Square Meter kg-f.s/m2 KiloPascal Second kPa-s Newton Second per Square Meter N.s/m2 Pascal Second Pa-s Poise dyne-s/cm2 Pound force-Second per Square Foot lbf-s/ft2 Pound force-Second per Square Inch lbf-s/in2 Pound per Foot Hour lb/(ft.hr) Pound per Foot Second lb/(ft.s) Poundal Second per Square Foot poundal.s/ft2 Reyn reyn

Force & Power Conversions

Electric Current Ampere amp Biot biot Centiampere camp Gilbert gilbert Kiloampere kamp Milliampere mamp Volt/ohm v/ohm Watt/volt w/v Force DekaNewton daN Dyne dyn HectoNewton hN Joule/meter J/m Kilo Pound Force klbf Kilogram-force kg KiloNewton kN Kip kip Meganewton MN Millinewton mN Newton N Pound Force lbf Poundal pdl Ton-force (long) ton Ton-force (short) ton Torque T Fracture Conductivity Darcy Inch darcy-in mu.m2-m mu.m2-m Fuel Volume Barrel bbl Gallon gal Liter L Milliliter mL Heat Capacity British Thermal Units per Pound - Degree Farenheit Btu/lb-F Joule per Kilogram Celsius J/kg-C Heat Conductivity British Thermal Units per Hour -Feet -Degree Farenheit Btu/hr-ft-F Watt per Meter Celsius W/m-C Power British Thermal Unit per Second BTU/sec British Thermal Units per Minute BTU/min Calorie per Minute cal/min Calorie per Second cal/sec Foot Pound-force per Minute ft-lb/min Foot Pound-force Per Second ft-lb/sec Horsepower HP Horsepower - Electric hp Horsepower - Metric hp Joule per Second J/s Kilocalorie per Minute kcal/min Kilocalorie per Second kcal/s Kilogram-force Meter per Minute kg-m/min Kilogram-force Meter per Second kg-m/s Kilowatt kW Megawatt MW Newton Meter per Second N-m/s Ton of Refrigeration ton ref Volt Ampere var Watt W Power/Arew Horse Power per Square Inch HP/in2 Kilowatt per Square Millimeter kW/mm2 Velocity Feet per Day ft/d Feet per Hour ft/hr Feet per Minute ft/min Feet per Second ft/s Kilometers per Hour kph Kilometers per Minute k/min Kilometers per Second k/sec Knot knot Mach mach Meter per Day m/d Meter per Hour m/hr Meter per Minute m/min Meter per Second m/s Miles per Hour mph Miles per Minute mi/min Miles per Second mi/sec Velocity - Angular Degrees per Hour deg/hr Degrees per Minute deg/min Degrees per Second deg/sec Radians per Hour rad/hr Radians per Minute rad/min Radians per Second rad/sec Revolutions per Hour RPH Revolutions per Minute RPM Revolutions per Second RPS

Gas Conversions

Gas Injection Rate Cubic Meter per Minute m3/min Standard Cubic Feet per Minute scfm Gas Production Index Cubic Meter per Day -Mega Pacal m3/d-MPa Cubic Meter per Day-KiloPascal m3/d-kPa Cubic Meter per Hour -KiloPascal m3/hr-kPa Million Standard Cubic Feet per Day per Pounds per Square Inch MMSCFD/psi MSCF/hr-psi MSCF/hr-psi MSCFD/psi MSCFD/psi SCF/hr-psi SCF/hr-psi Standard Cubic Feet per Day per Pounds per Square Inch SCFD/psi Gas Production Rate Cubic Meter per Minute m3/min MM MM MMM3/d MMM3/d Standard Cubic Feet per Minute scfm Gas Volume Barrel of Oil Equivalent BOE Cubic Meter m3 Million Standard Cubic Feet MMscf Million Standard Cubic Meters MMsm3 Thousand Barrels of Oil Equivalent KBOE Thousand Cubic Meter km3 Thousand Standard Cubic Feet Mscf Ton Liquefied Natural Gas ton LNG Liquefied Natural Gas Barrel of Oil Equivalent BOE Million Barrels of Oil Equivalent MMBOE Million Cubic Feet MMCF Thousand Barrels of Oil Equivalent KBOE Ton of LNG ton lng Specific Volume Barrels per Ton (U.K.) bbl/UK ton Barrels per Ton (U.S.) bbl/US ton Cubic Foot per Pound ft3/lb Cubic Inch per Pound in3/lb Cubic Meter per Kilogram m3/kg Gallons (U.K.) per Pound UK gal/lb Gallons (U.S.) per Pound US gal/lb Liter per Gram l/g Liter per Kilogram l/kg Volume Barrel (Petroleum) bbl Cubic Centimeter cm3 Cubic Decimeter dm3 Cubic Foot ft3 Cubic Inch in3 Cubic Meter m3 Cubic Yard yd3 Fluid Ounce fl oz Gallon gal Liter L Quart - Liquid qt

Production Conversions

Nozzle Size Millimeter mm One Eighth per Inch 1/8 in One Sixteenth per Inch 1/16 in One Sixty-fourth per Inch 1/64 in One Thirty-second per Inch 1/32in Nozzle Speed Feet per Second ft/s Meter per Second m/s Oil Production Index Barrel per Day-Pounds per Square Inch bbl/d-psi Barrel per Hour - Pounds per Square Inch bbl/hr-psi Barrel per Minute-Pounds per Square Inch bbl/min-psi Cubic Feet per Day-Pounds per Square Inch ft3/d-psi Cubic Meter per Day -KiloPascal m3/d-kPa Cubic Meter per Day -Mega Pascal m3/d-MPa Cubic Meter per Hour-KiloPascal m3/hr-kPa Gallons per Day-Pounds per Square Inch gal/d-psi Liter per Hour-KiloPascal L/hr-kPa Permeability Darcy darcy Milli Darcy md Pipe Capacity Barrel per Feet bbl/ft Cubic Meter per Meter m3/m Production Rate Cubic Meter per Day m3/d STB/d STB/d Rotation Radian per Second rad/sec Rotation per Minute rpm Section Modulus Cubic Centimeter cm3 Cubic Inch in3 Section Modulus - Moment of Section Centimeter to the power 4 cm4 Foot to the power 4 ft4 Inch to the power 4 in4 Meter to Power 4 m4 Stress Elastic Modulus Kilogram per Square Centimeter kg/cm2 KiloPascal kPa Mega Pascal