This app is a free unit converter and is a useful tool for the Oil & Gas community. These units are commonly used on the oilfield.

Area (sq.in, mm2, cm2)
Capacity (bbl/ft, ft3/ft, liter/m, m3/m, bbl/m)
Density (ppg, lb/ft3, kg/liter or SG, kg/m3)
Diameter (inch, mm, cm)
Distance (mile, nautical mile, km)
Dog Leg (deg/100ft, deg/30m, deg/10m)
Flow Rate (gpm, bpm, ft3/min, liter/min, m3/min)
Force (lbf, kgf, N, daN)
Length (ft, m)
Mass (lb, kg, kip, ton)
Power (hp, kw, btu/h, kcal/h)
Pressure (psi, bar, atm, kPa)
Pressure Gradient (psi/ft, bar/m, kPa/m, psi/m)
Temperature (Celsius, Fahrenheit, Kelvin, Rankine)
Temperature Gradient (oF/100ft, oC/100m)
Torque (lbf x ft, kgf x m, N x m)
Velocity (ft/s, ft/min, mile/h, knot, m/s, m/min, km/h)
Volume (bbl, gal, ft3, liter, m3)
Yield Point (lb/100ft2, kg/m2, N/m2 or Pa)
DISCLAIMER:

These tools & materials are provided 'as is' without warranties of any kind, express or implied.
Please verify the tools provided by this application by yourself before you use them. Ensure you understand the impact of using these tools.
Any use you choose to make of these tools & materials is undertaken by you entirely at you own risk.