Units Converter for Professionals - Free app for iPhone and iPad

This free version contains a limited set of units. Designed to serve as a trial demo for the full-featured version priced at $0.99.

Full version of Units Converter is designed primarily for engineering professionals and students. It is the only Units and Currency conversion app you will ever need. It is based on fundamental principle of dimensional analysis and supports a limitless number of combinations.

Supports over 300 single units and over 170 currencies.

Supported units:
Length:
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mil, in, ft, yard, mile or mi, mm, cm, m, km, um, nm, barleycorn, hand, cubit, step, pace, fathom, pole, rod, furlong, link, cable, NM (nautical mile), pt, px, pica, em, ell, perch, lp (Plancks length), au (astronomical unit), lightyear, ang (angstrom)

Mass:
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g, kg, mg, ug, tonne (metric), b or lbm, oz, stone, slug, quintal, amu (atomic mass unit), grain, carat, scruple, dram, grain

Time:
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s, min, h or hr, day, week, month, yr or year, decade, century, millenium, GY (galactic year)

Temperature:
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C, F, K, R

Angle:
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deg, (minute), (sec), rad, grad, rev, gon, quadrant

Quantity:
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units, doz, score, hundred, thousand, million, billion, trillion, quadrillion, lac, crore, mol, kmol

Luminance:
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cd (candela), lumen or lm, lux or lx, candle, phot, flame, nox

Solid angle:
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sr (steradian), hemisphere, sphere, sqdeg (square degree)

Area:
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[length^2], sft, sqft, acre, area, hectare, barn, rood, sulung, township, are

Volume:
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[length^3], ml, l or lit, ul, ulit, tsp, tbsp, cup, pint, quart, gal, ukgal, cuft, cft, barrel, cord

Speed:
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[length/time], kmph, mph, a (acoustic speed), Mach, c (speed of light)

Flow rate:
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[length^3/time], cfm, cfh, scfm, scfh, lpm, lph, slpm, slph, gpm, gph

[mass/time] also supported through additional specification of density or specific volume in any units.

Force:
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[mass-length/time^2], N, lbf, kip, poundal, gf, kgf, dyne

Energy:
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[mass-length^2/time^2] J, kJ, MJ, Btu, MMBtu, cal, kcal or Cal, Wh, kWh, eV, GGE, DGE, E85GE, SCF, MCF, tTNT, ktTNT, erg, Ry, TCE, TOE

Power:
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[mass-length^2/time^3], W, mW, kW, MW, GW, hp, bhp, TR (ton refrigeration)

Pressure:
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[mass/length-time^2], psi, ksi, psf, bar, mbar, atm, mmHg, cmHg, mmWC (water column), cmWC, mWC, inHg, inWC, ftWC, Pa, kPa, MPa, GPa, mPa, Torr or torr

Charge, Current:
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coul, faraday, franklin or Fr, A, mA, uA, kA, V, mV, uV, kV, Ohm or ohm, S (siemen) or mho,

Fuel consumption:
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[length/volume], mpg, kmpl

Miscellaneous:
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darcy or D, poise or P, centipoise or cP, mpy and mmpy (corrosion), BMI (body mass index, requires height^2 or body mass as additional parameter)

Currencies:
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USD, EUR, GBP, CAD, JPY, CNY, INR, SAR, QAD and 170 other world currencies. Conversion rates are updated at regular intervals.