To convert Column 1 into Column 2, multiply by |
|
Column 1 SI Unit |
|
Column 2 non-SI Unit |
|
To convert Column 2 into Column 1, multiply by |
Length |
0.621 |
|
kilometer, km (103 m) |
|
mile, mi |
|
1.609 |
1.094 |
|
meter, m |
|
yard, yd |
|
0.914 |
3.28 |
|
meter, m |
|
foot, ft |
|
0.304 |
1.0 |
|
micrometer, µm (10-6 m) |
|
micron, µ |
|
1.0 |
3.94 x 10-2 |
|
millimeter, mm (10-3 m) |
|
inch, in |
|
25.4 |
10 |
|
nanometer, nm (10-9 m) |
|
Angstrom, Å |
|
0.1 |
Area |
2.47 |
|
hectare, ha |
|
acre |
|
0.405 |
247 |
|
square kilometer, km2 (103 m)2 |
|
acre |
|
4.05 x 10-3 |
0.386 |
|
square kilometer, km2 (103 m)2 |
|
square mile, mi2 |
|
2.590 |
2.47 x 10-4 |
|
square meter, m2 |
|
acre |
|
4.05 x 103 |
10.76 |
|
square meter, m2 |
|
square foot, ft2 |
|
9.29 x 10-2 |
1.55 x 10-3 |
|
square millimeter, mm2 (10-3 m)2 |
|
square inch, in2 |
|
645 |
Volume |
9.73 x 10-3 |
|
cubic meter, m3 |
|
acre-inch |
|
102.8 |
35.3 |
|
cubic meter, m3 |
|
cubic foot, ft3 |
|
2.83 x 10-2 |
6.10 x 104 |
|
cubic meter, m3 |
|
cubic inch, in3 |
|
1.64 x 10-5 |
2.84 x 10-2 |
|
liter, L (10-3 m3) |
|
bushel, bu |
|
35.24 |
1.057 |
|
liter, L (10-3 m3) |
|
quart (liquid), qt |
|
0.946 |
3.53 x 10-2 |
|
liter, L (10-3 m3) |
|
cubic foot, ft3 |
|
28.3 |
0.265 |
|
liter, L (10-3 m3) |
|
gallon |
|
3.78 |
33.78 |
|
liter, L (10-3 m3) |
|
ounce (fluid), oz |
|
2.96 x 10-2 |
2.11 |
|
liter, L (10-3 m3) |
|
pint (fluid), pt |
|
0.473 |
Mass |
2.20 x 10-3 |
|
gram, g (10-3 kg) |
|
pound, lb |
|
454 |
3.52 x 10-2 |
|
gram, g (10-3 kg) |
|
ounce (avdp), oz |
|
28.4 |
2.205 |
|
kilogram, kg |
|
pound, lb |
|
0.454 |
0.01 |
|
kilogram, kg |
|
quintal (metric), q |
|
100 |
1.10 x 10-3 |
|
kilogram, kg |
|
ton (2000 lb), ton |
|
907 |
1.102 |
|
megagram, Mg (tonne) |
|
ton (U.S.), ton |
|
0.907 |
1.102 |
|
tonne, t |
|
ton (U.S.), ton |
|
0.907 |
Yield and Rate |
0.893 |
|
kilogram per hectare, kg ha-1 |
|
pound per acre, lb acre-1 |
|
1.12 |
7.77 x 10-2 |
|
kilogram per cubic meter, kg m-3 |
|
pound per bushel, bu-1 |
|
12.87 |
1.49 x 10-2 |
|
kilogram per hectare, kg ha-1 |
|
bushel per acre, 60 lb |
|
67.19 |
1.59 x 10-2 |
|
kilogram per hectare, kg ha-1 |
|
bushel per acre, 56 lb |
|
62.71 |
1.86 x 10-2 |
|
kilogram per hectare, kg ha-1 |
|
bushel per acre, 48 lb |
|
53.75 |
0.107 |
|
liter per hectare, L ha-1 |
|
gallon per acre |
|
9.35 |
893 |
|
tonnes per hectare, t ha-1 |
|
pound per acre, lb acre-1 |
|
1.12 x 10-3 |
893 |
|
megagram per hectare, Mg ha-1 |
|
pound per acre, lb acre-1 |
|
1.12 x 10-3 |
0.446 |
|
megagram per hectare, Mg ha-1 |
|
ton (2000 lb) per acre, ton acre-1 |
|
2.24 |
2.24 |
|
meter per second, m s-1 |
|
mile per hour |
|
0.447 |
Specific Surface |
10 |
|
square meter per kilogram, m2 kg-1 |
|
square centimeter per gram, cm2 g-1 |
|
0.1 |
1000 |
|
square meter per kilogram, m2 kg-1 |
|
square millimeter per gram, mm2 g-1 |
|
0.001 |
Density |
1.00 |
|
megagram per cubic meter, Mg m-3 |
|
gram per cubic centimeter, g cm-3 |
|
1.00 |
Pressure |
9.90 |
|
megapascal, MPa (106 Pa) |
|
atmosphere |
|
0.101 |
10 |
|
megapascal, MPa (106 Pa) |
|
bar |
|
0.1 |
2.09 x 10-2 |
|
pascal, Pa |
|
pound per square foot, lb ft-2 |
|
47.9 |
1.45 x 10-4 |
|
pascal, Pa |
|
pound per square inch, lb in-2 |
|
6.90 x 103 |
Temperature |
1.00 (K - 273) |
|
Kelvin, K |
|
Celsius, °C |
|
1.00 (°C + 273) |
(9/5 °C) + 32 |
|
Celsius, °C |
|
Fahrenheit, °F |
|
5/9 (°F - 32) |
Energy, Work, Quantity of Heat |
9.52 x 10-4 |
|
joule, J |
|
British thermal unit, Btu |
|
1.05 x 103 |
0.239 |
|
joule, J |
|
calorie, cal |
|
4.19 |
107 |
|
joule, J |
|
erg |
|
10-7 |
0.735 |
|
joule, J |
|
foot-pound |
|
1.36 |
2.387 x 10-5 |
|
joule per square meter, J m-2 |
|
calorie per square centimeter (langley) |
|
4.19 x 104 |
105 |
|
newton, N |
|
dyne |
|
10-5 |
1.43 x 10-3 |
|
watt per square meter, W m-2 |
|
calorie per square centimeter minute (irradiance), cal cm-2 min-1 |
|
698 |
Transpiration and Photosynthesis |
3.60 x 10-2 |
|
milligram per square meter second, mg m-2 s-1 |
|
gram per square decimeter hour, g dm-2 h-1 |
|
27.8 |
5.56 x 10-3 |
|
milligram (H2O) per square meter second, mg m-2 s-1 |
|
micromole (H2O) per square centimeter second, µmol cm-2 s-1 |
|
180 |
10-4 |
|
milligram per square meter second, mg m-2 s-1 |
|
milligram per square centimeter second, mg cm-2 s-1 |
|
104 |
35.97 |
|
milligram per square meter second, mg m-2 s-1 |
|
milligram per square decimeter hour, mg dm-2 h-1 |
|
2.78 x 10-2 |
Plane Angle |
57.3 |
|
radian, rad |
|
degrees (angle), ° |
|
1.75 x 10-2 |
Electrical Conductivity, Electricity, and Magnetism |
10 |
|
siemen per meter, S m-1 |
|
millimho per centimeter, mmho cm-1 |
|
0.1 |
104 |
|
tesla, T |
|
gauss, G |
|
10-4 |
Water Measurement |
9.73 x 10-3 |
|
cubic meter, m3 |
|
acre-inches, acre-in |
|
102.8 |
9.81 x 10-3 |
|
cubic meter per hour, m3 h-1 |
|
cubic feet per second, ft3 s-1 |
|
101.9 |
4.40 |
|
cubic meter per hour, m3 h-1 |
|
U.S. gallons per minute, gal min-1 |
|
0.227 |
8.11 |
|
hectare-meters, ha-m |
|
acre-feet, acre-ft |
|
0.123 |
97.28 |
|
hectare-meters, ha-m |
|
acre-inches, acre-in |
|
1.03 x 10-2 |
8.1 x 10-2 |
|
hectare-centimeters, ha-cm |
|
acre-feet, acre-ft |
|
12.33 |
Concentrations |
1 |
|
centimole per kilogram, cmol kg-1 |
|
milliequivalents per 100 grams, meq 100 g-1 |
|
1 |
0.1 |
|
gram per kilogram, g kg-1 |
|
percent, % |
|
10 |
1 |
|
milligram per kilogram, mg kg-1 |
|
parts per million, ppm |
|
1 |
Radioactivity |
2.7 x 10-11 |
|
becquerel, Bq |
|
curie, Ci |
|
3.7 x 1010 |
2.7 x 10-2 |
|
becquerel per kilogram, Bq kg-1 |
|
picocurie per gram, pCi g-1 |
|
37 |
100 |
|
gray, Gy (absorbed dose) |
|
rad, rd |
|
0.01 |
100 |
|
sievert, Sv (equivalent dose) |
|
rem (roentgen equivalent man) |
|
0.01 |
Plant Nutrient Conversion |
|
|
Elemental |
|
Oxide |
|
|
2.29 |
|
P |
|
P2O5 |
|
0.437 |
1.20 |
|
K |
|
K2O |
|
0.830 |
1.39 |
|
Ca |
|
CaO |
|
0.715 |
1.66 |
|
Mg |
|
MgO |
|
0.602 |