| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| HANDY CALCULATIONS - A | ||||
| acres | x | 0.404 69 | = | hectares |
| acres | x | 43,560 | = | square feet (ft2) |
| acres | x | 4,046.873 | = | square meters (m2) |
| acre-feet | x | 43,560 | = | cubic feet (ft3 or cf) |
| acre-feet | x | 7,758 | = | barrels |
| angstrom units | x | 1.0E-10 | = | meters (m) |
| atmospheres | x | 14.70 | = | pounds/square inch |
| atmospheres | x | 1.033 | = | kilograms/square centimeter |
| atmospheres | x | 1.013250E+05 | = | pascal |
| atmospheres | x | 33.90 | = | Feet of water |
| atmospheres | x | 76.0 | = | centimeter of mercury |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| barrels (crude oil) | x | 5.6146 | = | cubic feet of crude oil |
| barrels (crude oil) | x | 0.158 987 3 | = | cubic meters of crude oil |
| barrels (crude oil) | x | 42 | = | gallons of crude oil, US |
| barrels (crude oil) | x | 158.987 3 | = | liters of crude oil |
| barrels (crude oil) | x | 0.136 | = | metric tons of crude oil |
| barrels/day | x | 0.0292 | = | Gallons(US)/minute |
| barrels/day<> | x | 1.84 | = | cubic centimeters/second |
| barrels (crude oil) | x | 0.15 | = | short tons of crude oil |
| barrels, US liquid | x | 0.75 | = | barrels of crude oil |
| barrels, US liquid | x | 31.5 | = | gallons, US |
| bars | x | 0.98 | = | atmospheres |
| bars | x | 14.50 | = | pounds/square inch |
| British thermal units (Btu) | x | 3.931E-04 | = | horsepower-hours |
| British thermal units (Btu) | x | 0.000 292 8 | = | kilowatthours (kWh) |
| bushels, US | x | 0.035 239 07 | = | cubic meters (m3) |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| calories (cal) | x | 4.186 8 | = | joules (J) |
| centimeters (cm) | x | 0.394 | = | inches (in) |
| centimeters of mercury | x | 0.44 | = | feet of water |
| centimeters/second | x | 0.036 | = | kilometers/hour |
| centipoise | x | 0.01 | = | poise |
| centipoise | x | 0.01 | = | grams/cm-sec |
| centipoise | x | 0.0010 | = | pascal-second |
| centipoise | x | 6.72E-04 | = | pounds/ft-sec |
| cubic centimeters (cm3) | x | 3.531E-05 | = | cubic feet (ft3 or cf) |
| cubic centimeters (cm3) | x | 0.06102 | = | cubic inches (in3) |
| cubic centimeters (cm3) | x | 2.642E-04 | = | gallons, US liquid |
| cubic centimeters (cm3) | x | 1.0E-03 | = | liters (L) |
| cubic feet (ft3 or cf) | x | 28,320 | = | cubic centimeters (cm3) |
| cubic feet (ft3 or cf) | x | 1728 | = | cubic inches (in3) |
| cubic feet (ft3 or cf) | x | 7.48 | = | gallons, US liquid |
| cubic feet (ft3 or cf) | x | 28.316 8 | = | liters (L) |
| cubic feet (ft3 or cf) | x | 2.831685E-02 | = | cubic meters |
| cubic feet/minute | x | 472 | = | cubic centimeters/second |
| cubic feet/minute | x | 4.72E-4 | = | cubic meters/second |
| cubic feet/minute | x | 0.12 | = | gallons/second |
| cubic feet/minute | x | 0.471 947 4 | = | liters/second |
| cubic inches (in3) | x | 16.38706 | = | cubic centimeters (cm3) |
| cubic inches (in3) | x | 1.639E-05 | = | cubic meters (m3) |
| cubic inches (in3) | x | 4.329E-03 | = | gallons (gal) |
| cubic inches (in3) | x | 0.016387 06 | = | liters (L) |
| cubic meters (m3) | x | 35.315 | = | cubic feet (ft3 or cf) |
| cubic meters (m3) | x | 264.20 | = | gallons, US liquid |
| cubic meters (m3) | x | 1,000 | = | liters (L) |
| cubic meters/sec (m3/s) | x | 15,850 | = | gallons/minute |
| cubic meters/sec (m3/s) | x | 2118 | = | cubic feet/minute |
| cubic meters/sec (m3/s) | x | 60,000 | = | liters/minute |
| cycles/second | x | 1.0 | = | hertz |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| darcy | x | 0.9869E-12 | = | meter squared |
| days (mean solar) | x | 86,400 | = | seconds |
| degrees (angle) | x | 0.0111 | = | quadrants |
| degrees (angle) | x | 0.017 453 29 | = | radians |
| degrees (angle) | x | 3,600 | = | seconds |
| degrees/second | x | 0.16667 | = | revolutions/minute |
| dynes | x | 1.0E-05 | = | joules/meter (newtons) |
| dynes/square centimeter | x | 1.0E-06 | = | bars |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| em (pica) | x | 0.42 | = | centimeters (cm) |
| ergs | x | 1.0E-07 | = | joules (J) |
| ergs | x | 2.78E-14 | = | kilowatthours (kWh) |
| ergs/second | x | 1.3E-10 | = | horsepower (hp) |
| ergs/second | x | 1.0E-10 | = | kilowatts |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| feet (ft) | x | 30.48 | = | centimeters (cm) |
| feet (ft) | x | 12 | = | inches (in) |
| feet (ft) | x | 0.3048 | = | meters (m) |
| feet (ft) | x | 1.645E-04 | = | miles (nautical) |
| feet (ft) | x | 1.894E-04 | = | miles (statute) |
| feet of water | x | 0.029499 | = | atmospheres of water |
| feet of water | x | 0.8826 | = | inches of mercury |
| feet of water | x | 0.433515 | = | pounds/square inch |
| feet/minute | x | 0.5080 | = | centimeter/second |
| feet/second | x | 1.09728 | = | kilometers/hour |
| feet/second | x | 0.59248 | = | knots |
| feet/second | x | 0.681818 | = | miles/hour |
| foot-candles | x | 10.763 91 | = | lumens/square meter |
| foot-pounds | x | 3.77E-07 | = | kilowatthours (kWh) |
| foot-pounds/minute | x | 2.26E-05 | = | kilowatts (kW) |
| foot-pounds/sec | x | 0.00181 | = | horsepower |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| gallons, US (gal) | x | 0.031 75 | = | barrels |
| gallons, US (gal) | x | 0.02381 | = | barrels of crude oil |
| gallons, US (gal) | x | 3,785.41 | = | cubic centimeters (cm3) |
| gallons, US (gal) | x | 0.1337 | = | cubic feet (ft3 or cf) |
| gallons, US (gal) | x | 3.785412E-03 | = | cubic meters (m3) |
| gallons, US (gal) | x | 0.832675 | = | gallons, imperial |
| gallons, US (gal) | x | 3.785412 | = | liters (L) |
| gallons, liquid British imperial | x | 1.2014 | = | gallons, US liquid |
| gallons of crude oil | x | 0.02380952 | = | barrels of crude oil |
| gallons/minute, US | x | 8.0208 | = | cubic feet/hour |
| gallons/minute, US | x | 0.134 | = | cubic feet/minute |
| gallons/minute, US | x | 6.309E-05 | = | cubic meters/sec |
| gausses | x | 1.0E-04 | = | webers/square meter |
| grains | x | 0.064798 91 | = | grams (g) |
| grams (g) | x | 0.0353 | = | ounces |
| grams (g) | x | 2.204623E-03 | = | pounds (lb) |
| grams/centimeter | x | 5.6E-03 | = | pounds/inch |
| grams/cubic centimeter | x | 62.43 | = | pounds/cubic foot |
| grams/cubic centimeter | x | 8.347 | = | pounds/gallon |
| grams/liter | x | 1,000 | = | parts/million |
| grams/liter | x | 8.34 | = | pounds/1,000 gallons |
| grams/liter | x | 0.06243 | = | pounds/cubic foot |
| grams/square centimeter | x | 2.04816 | = | pounds/square foot |
| gram-calories | x | 1.56E-06 | = | horsepower-hours |
| gram-calories | x | 1.16E-06 | = | kilowatthours (kWh) |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| hectares (ha) | x | 2.471 | = | acres |
| hectares (ha) | x | 107,600 | = | square feet (ft2) |
| hectares (ha) | x | 10,000 | = | square meters (m2) |
| horsepower (hp) | x | 1.014 | = | horsepower (metric) |
| horsepower (hp) | x | 42.44 | = | British thermal units/minute |
| horsepower (hp) | x | 550 | = | foot-pounds/second |
| horsepower-hour (hp-hr) | x | 2.684520E+6 | = | Joules |
| horsepower (hp) | x | 0.746043 | = | kilowatts |
| horsepower (metric) | x | 0.986 | = | horsepower |
| horsepower (metric) | x | 542.5 | = | foot-pounds/second |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| inches (in) | x | 2.54 | = | centimeters (cm) |
| inches (in) | x | 0.0254 | = | meters (m) |
| inches (in) | x | 1.578E-05 | = | miles (mi) |
| inches of mercury | x | 0.4912 | = | pounds/square inch |
| inches of water at (4oC) | x | 2.458E-03 | = | atmospheres |
| inches of water at (4oC) | x | 0.03 | = | pounds/square inch |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| joules (J) | x | 9.48E-04 | = | British thermal units (Btu) |
| joules (J) | x | 2.778E-04 | = | watthours (Wh) |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| kilograms (kg) | x | 2.204 6 | = | pounds (lb) |
| kilograms (kg) | x | 9.84E-04 | = | tons, long |
| kilograms (kg) | x | 1.1E-03 | = | tons, metric (t) |
| kilograms/cubic meter | x | 1.42E-03 | = | pounds/square inch |
| kilograms/meter | x | 0.67197 | = | pounds/foot |
| kilograms/square centimeter | x | 0.9678 | = | atmospheres |
| kilograms/square centimeter | x | 14.223 | = | pounds/square inch |
| kilograms/square meter | x | 9.81E-05 | = | bars |
| kilogram-meters | x | 2.72E-06 | = | kilowatthours (kWh) |
| kilometers (km) | x | 3,280.84 | = | feet (ft) |
| kilometers (km) | x | 0.621 4 | = | miles (mi) |
| kilometers/hour | x | 0.91134 | = | feet/second |
| kilometers/hour | x | 0.53995 | = | knots |
| kilometers/hour | x | 0.62137 | = | miles/hour |
| kilowatts (kW) | x | 1.341 | = | horsepower (hp) |
| kilowatts (kW) | x | 1,000 | = | watts (W) |
| kilowatthours (kWh) | x | 3,413 | = | British thermal units (Btu) |
| kilowatthours (kWh) | x | 3.60E+06 | = | Joules |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| liters (L) | x | 0.0063 | = | barrels of oil |
| liters (L) | x | 0.0084 | = | barrels |
| liters (L) | x | 0.035315 | = | cubic feet (ft3 or cf) |
| liters (L) | x | 61.02 | = | cubic inches (in3) |
| liters (L) | x | 0.264 | = | gallons |
| long tons | x | 1,016.047 | = | kilograms (kg) |
| long tons | x | 1.016047 | = | metric tons (t) |
| long tons | x | 2,240 | = | pounds (lb) |
| long tons | x | 1.12 | = | short tons (st) |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| meters (m) | x | 3.281 | = | feet (ft) |
| meters (m) | x | 6.21E-04 | = | miles (statute) |
| meters/second | x | 2.23 | = | miles/hour |
| meters/second | x | 196.8 | = | feet/minute |
| metric tons (t) | x | 1,000 | = | kilograms (kg) |
| metric tons (t) | x | 2,204.62 | = | pounds (lb) |
| metric tons (t) | x | 1.1023 | = | short tons (st) |
| metric tons of crude oil | x | 7.33 | = | barrels (bbl) |
| microns | x | 1.0E-06 | = | meters (m) |
| miles, statute | x | 161,000 | = | centimeters (cm) |
| miles, statute | x | 5,280 | = | feet (ft) |
| miles, statute | x | 1.609344 | = | kilometers (km) |
| miles, statute | x | 1,609 | = | meters (m) |
| miles, statute | x | 0.868975 | = | miles, nautical |
| miles/hour | x | 44.70 | = | centimeter/second |
| miles/hour | x | 1.4667 | = | feet/second |
| meters (m) | x | 3.281 | = | feet |
| meters (m) | x | 6.21E-04 | = | miles (statute) |
| millimeters | x | 0.03937 | = | inches |
| milligrams/liter | x | 1 | = | parts/million |
| million gallons/day | x | 1.5472 | = | cubic feet/second |
| minutes (angles) | x | 0.0167 | = | degrees |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| newtons | x | 0.22481 | = | pounds force |
| newtons | x | 100,000 | = | dynes |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| ounces (oz) | x | 28.34 | = | grams (g) |
| ounces (oz) | x | 0.0625 | = | pounds (lb) |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| pascal | x | 1 | = | newton/sq meter |
| pascal | x | 9.871E-06 | = | atmosphere |
| parts/million | x | 8.34 | = | pounds/million gallon (gal) |
| pints, US liquid | x | 0.125 | = | gallons, US (gal) |
| poise (P) | x | 1 | = | grams/centimeter second |
| poundals | x | 13,826 | = | dynes |
| pounds (lb) | x | 4.45E+05 | = | dynes |
| pounds (lb) | x | 453.59 | = | grams (g) |
| pounds (lb) | x | 4.5359E-04 | = | Tons (metric) |
| pounds (lb) | x | 4.448 | = | joules/meter (newtons) |
| pounds (lb) | x | 0.45359237 | = | kilograms (kg) |
| pounds (lb) | x | 16 | = | ounces (oz) |
| pounds of water | x | 27.68 | = | cubic inches (in3) |
| pounds of water | x | 0.11983 | = | gallons (gal) |
| pounds/cubic foot | x | 0.1337 | = | pounds/gallon (US) |
| pounds/cubic foot | x | 0.006944 | = | pounds/sq inch/foot (psi/ft) |
| pounds/cubic foot | x | 0.016026 | = | specific gravity |
| pounds/cubic foot | x | 0.016026 | = | grams/cubic centimeter |
| pounds/cubic foot | x | 16.026 | = | kilograms/cubic meter |
| pounds/cubic inch | x | 27.68 | = | grams/cubic centimeter |
| pounds/cubic inch | x | 27,680 | = | kilograms/cubic meter |
| pounds/foot | x | 1.4882 | = | kilograms/meter |
| pounds/inch | x | 178.60 | = | grams/centimeter |
| pounds/gallon (ppg) | x | 0.12005 | = | specific gravity |
| pounds/gallon (ppg) | x | 0.052 | = | pounds/sq inch/foot (psi/ft) |
| pounds/gallon (ppg) | x | 7.48 | = | pounds/cubic foot |
| pounds/gallon (ppg) | x | 0.1198 | = | grams/cubic centimeter |
| pounds/square inch | x | 0.0680 | = | atmospheres |
| pounds/square inch | x | 2.3095 | = | feet of water |
| pounds/square inch | x | 2.03602 | = | inches of mercury |
| pounds/square inch | x | 703.0696 | = | kilograms/square meter |
| pounds/square inch | x | 6.894757E+03 | = | pascal |
| pounds/square inch | x | 144 | = | pounds/square foot |
| pounds/sq inch/foot(psi/ft) | x | 19.23 | = | pounds/gallon (US) |
| pounds/sq inch/foot(psi/ft) | x | 144 | = | pounds/cubic foot |
| pounds/sq inch/foot (psi/ft) | x | 2.3095 | = | specific gravity |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| quadrants, angle | x | 90 | = | degrees |
| quadrants, angle | x | 1.5708 | = | radians |
| quarts, liquid | x | 57.75 | = | cubic inches (in3) |
| quarts, liquid | x | 9.46E-04 | = | cubic meters (m3) |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| radians | x | 57.29 | = | degrees |
| radians | x | 3,438 | = | minutes |
| radians | x | 206,000 | = | seconds |
| revolutions | x | 360 | = | degrees |
| revolutions | x | 4 | = | quadrants |
| revolutions | x | 6.283185 | = | radians |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| seconds (angle) | x | 2.78E-04 | = | degrees |
| seconds (angle) | x | 4.848137E-06 | = | radians |
| short tons (st) | x | 0.8929 | = | long tons |
| short tons (st) | x | 0.9071847 | = | metric tons (t) |
| short tons (st) | x | 2,000 | = | pounds (lb) |
| short tons of crude oil | x | 6.65 | = | barrels (bbl) |
| specific gravity | x | 1 | = | grams/cubic centimeter |
| specific gravity | x | 0.433 | = | pounds/sq inch/foot (psi/ft) |
| specific gravity | x | 8.33 | = | pounds/gallon (US) |
| specific gravity | x | 350.5 | = | pounds/barrel |
| specific gravity | x | 62.4 | = | pounds/cubic foot |
| square centimeters (cm2) | x | 1.08E-03 | = | square feet (ft2) |
| square centimeters (cm2) | x | 0.1550 | = | square inches (in2) |
| square inch (in2) | x | 6.4516 | = | square centimeter |
| square feet (ft2) | x | 2.2956E-05 | = | acres |
| square feet (ft2) | x | 929.03 | = | square centimeters (cm2) |
| square feet (ft2) | x | 144 | = | square inches (in2) |
| square feet (ft2) | x | 0.09290304 | = | square meters (m2) |
| square feet (ft2) | x | 3.59E-08 | = | square miles (mi2) |
| square kilometers (km2) | x | 247.10 | = | acres |
| square kilometers (km2) | x | 100 | = | hectares |
| square kilometers (km2) | x | 0.386 | = | square miles (mi2) |
| square meters (m2) | x | 2.471E-04 | = | acres |
| square meters (m2) | x | 10.763915 | = | square feet (ft2) |
| square meters (m2) | x | 3.86E-07 | = | square miles (mi2) |
| square miles (mi2) | x | 640 | = | acres |
| square miles (mi2) | x | 27,900,000 | = | square feet (ft2) |
| square miles (mi2) | x | 2.589988 | = | square kilometers (km2) |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| therms | x | 100,000 | = | BTUs of natural gas |
| therms | x | 1.054804E+08 | = | joules (J) |
| tonnes | x | 1.0 | = | tons, metric |
| tons, long | x | 1,016.047 | = | kilograms (kg) |
| tons, long | x | 1.016047 | = | metric tons (t) |
| tons, long | x | 2,240 | = | pounds (lb) |
| tons, long | x | 1.12 | = | short tons (st) |
| tons, metric (t) | x | 7.33 | = | barrels of crude oil |
| tons, metric (t) | x | 1,000 | = | kilograms (kg) |
| tons, metric (t) | x | 2,204.62 | = | pounds (lb) |
| tons, short (st) | x | 6.65 | = | barrels of crude oil |
| tons, short (st) | x | 0.8929 | = | long tons |
| tons, short (st) | x | 0.9071847 | = | metric tons (t) |
| tons, short (st) | x | 2,000 | = | pounds (lb) |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| watts (W) | x | 3.41219 | = | British thermal units/hour |
| watts (W) | x | 0.001341 | = | horsepower (hp) |
| watts (absolute) | x | 1 | = | joules/second |
| watthours (Wh) | x | 3.41219 | = | British thermal units (Btu) |
| watthours (Wh) | x | 2,656 | = | foot-pounds |
| weeks | x | 168 | = | hours |
| Original Unit | Multiplied | Conversion | Equals | Final Unit |
| years (mean of 4-year period) | x | 365.25 | = | days |
| years (mean of 4-year period) | x | 8,766 | = | hours |
| years (mean of 4-year period) | x | 526,000 | = | minutes (time) |
| years (mean of 4-year period) | x | 31,558,150 | = | seconds (time) |
| years (mean of 4-year period) | x | 52.17 | = | week |
Prefixes of International System of Units
| Numerical Value | Prefix | Symbol | Meaning | Exponential |
| 1 000 000 000 000 000 000 | exa | E | Quintillion | 1018 |
| 1 000 000 000 000 000 | peta | P | Quadrillion | 1015 |
| 1 000 000 000 000 | tera | T | Trillion | 1012 |
| 1 000 000 000 | giga | G | Billion | 109 |
| 1 000 000 | mega | M | Million | 106 |
| 1 000 | kilo | k | Thousand | 103 |
| 100 | hecto | h | Hundred | 102 |
| 10 | deca or | da | Ten | 101 |
| 1 |
|
|
| 100 |
| 0.1 | deci | d | One-tenth | 10-1 |
| 0.01 | centi | c | one-hundredth | 10-2 |
| 0.001 | milli | m | one-thousandth | 10-3 |
| 0.000 001 | micro | � | one-millionth | 10-6 |
| 0.000 000 001 | nano | n | one-billionth | 10-9 |
| 0.000 000 000 001 | pico | p | one-trillionth | 10-12 |
| 0.000 000 000 000 001 | femto | f | one-quadrillionth | 10-15 |
| 0.000 000 000 000 000 001 | atto | a | one-quintillionth | 10-18 |
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