Andes accepts units from the International System of Units (SI), plus a few others.  Unit symbols must be entered using upper or lower case letters exactly as shown. symbol name m meter kg     kilogram s second C Coulomb g gram (= 0.001 kg) N Newton J Joule V Volt A Ampere ("amps") T tesla Wb weber ohm ohm Hz Hertz Pa Pascal F Farad W Watt deg degree (= 0.0174532925199433 rad) rad radians rev revolutions (= 6.2831853071796 rad) day day (= 86400 s) hr hour (= 3600 s) h hour (= 3600 s) min minute (= 60 s) yr year (= 31556952 s) liter liter (= 0.001 m^3) NON SI UNITS ACCEPTED BY ANDES: lb pound(=4.448 N) ft foot(= 0.3048 m) in inch(=0.0254 m) mi mile(=1609 m) slug slug(=14.59 kg) gal gallon(=0.003786 m^3) u  atomic mass unit(=1.6605402E-27 kg) eV electron volt(=1.60217733E-19 J) cal calorie(=4.186 J) lbs pounds(=4.448 N) knot knot(=0.5144444 m/s) psi pounds/in^2(=6894.4137888276 Pa) rpm evs/min(0.10471975511966 rad/s)

MATH. OPERATIONS ON UNIT SYMBOLS: symbol meaning example / division m/s ^ exponentiation s^2 .     (period) multiplication N.m * multiplication (alternative) N*m PREFIXES ON UNIT SYMBOLS: abbrev value name a 1.00E-18 atto f 1.00E-15  femto p 1.00E-12 pico n 1.00E-09 nano m 1.00E-06 micro mu 1.00E-06 micro m 1.00E-03 milli c 1.00E-02 centi d 1.00E-01 deci k 1.00E+03 kilo K 1.00E+03 kilo M 1.00E+06 mega G 1.00E+09 giga T 1.00E+12 tera P 1.00E+15 peta E 1.00E+18 exa UNITS OF SOME PHYSICAL QUANTITIES: m/s velocity m/s^2 acceleration N.m torque J.s angular momentum kg.m^2 moment of inertia N/m spring constant N.s/m^2 viscosity N/m^2 Young/shear/bulk modulus rad/s^2 angular acceleration N/C electric field