Metric Conversion
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| Factor (multiply by) |
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List of Conversion Factors
Area
| Unit of Measurement | Unit of Measurement | Conversion Factor multiply by |
|---|---|---|
| acres (ac) | hectares (ha) | 0.4047 |
| acres (ac) | square metres (m^2) | 4.0469E3 |
| hectares (ha) | square metres (m^2) | 1E4 |
| hectares (ha) | acres (ac) | 2.47 |
| perch (p) | square metres (m^2) | 25.2928 |
| rood (rd) | square metres (m^2) | 1.0117E3 |
| square centimetres (cm^2) | square inches (in^2) | 0.155 |
| square feet (ft^2) | square metres (m^2) | 0.092 |
| square inches (in^2) | square metres (m^2) | 6.4516E-4 |
| square inches (in^2) | square millimetres (mm^2) | 6.4516E2 |
| square inches (in^2) | square centimetres (cm^2) | 6.4516 |
| square metres (m^2) | square yards (yd^2) | 1.195 |
| square metres (m^2) | square feet (ft^2) | 10.76 |
| square metres (m^2) | square inches (in^2) | 1.55E3 |
| square metres (m^2) | acres (ac) | 2.47E-4 |
| square metres (m^2) | rood (rd) | 9.88E-4 |
| square metres (m^2) | perch (p) | 3.95E-2 |
| square metres (m^2) | hectares (ha) | 1E-4 |
| square millimetres (mm^2) | square inches (in^2) | 1.55E-3 |
| square yards (yd^2) | square metres (m^2) | 0.8361 |
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Length
| Unit of Measurement | Unit of Measurement | Conversion Factor multiply by |
|---|---|---|
| centimetres (cm) | inches (in) | 0.3937 |
| chains (ch) | metres (m) | 2.0116E1 |
| feet (ft) | metres (m) | 0.3048 |
| inches (in) | metres (m) | 0.0254 |
| inches (in) | centimetres (cm) | 2.54 |
| inches (in) | millimetres (mm) | 25.4 |
| Light years l.y. | metres (m) | 9.4605E15 |
| links (lk) | metres (m) | 0.2012 |
| metres (m) | miles | 6.2137E-4 |
| metres (m) | chains (ch) | 0.0497 |
| metres (m) | yards (yd) | 1.0936 |
| metres (m) | links (lk) | 4.9709 |
| metres (m) | feet (ft) | 3.2808 |
| metres (m) | inches (in) | 39.37 |
| metres (m) | Light years l.y. | 1.057E-16 |
| metres (m) | Perches | 1.988E-1 |
| miles | metres (m) | 1.6093E3 |
| millimetres (mm) | inches (in) | 0.0397 |
| Perch | metres (m) | 5.0292 |
| yards (yd) | metres (m) | 0.9144 |
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Mass
| Unit of Measurement | Unit of Measurement | Conversion Factor multiply by |
|---|---|---|
| drams (dr) | kilograms (kg) | 1.7718E-3 |
| grain (gr) | kilograms (kg) | 6.4798E-5 |
| hundredweight (cwt) | kilograms (kg) | 50.8023 |
| kilograms (kg) | ton | 9.84E-4 |
| kilograms (kg) | tonne | 1E-3 |
| kilograms (kg) | short ton (sh tn) | 1.1023E-3 |
| kilograms (kg) | hundredweight (cwt) | 0.197 |
| kilograms (kg) | quarter (qr) | 0.0787 |
| kilograms (kg) | stone | 0.1575 |
| kilograms (kg) | pounds (lb) | 2.2046 |
| kilograms (kg) | ounces (oz) | 32.1507 |
| kilograms (kg) | drams (dr) | 5.643E2 |
| kilograms (kg) | grain (gr) | 1.54E4 |
| kilograms (kg) | slug | 0.0685 |
| kilograms (kg) | troy ounces (oz tr) | 32.1507 |
| kilograms (kg) | pennyweight (dwt) | 6.4301E2 |
| ounces (oz) | kilograms (kg) | 0.0311 |
| pennyweight (dwt) | kilograms (kg) | 1.5552E-3 |
| pounds (lb) | kilograms (kg) | 0.4536 |
| quarter (qr) | kilograms (kg) | 12.7006 |
| short ton (sh tn) | kilograms (kg) | 9.0718E2 |
| short ton (sh tn) | tonnes (t) | 0.9072 |
| slug | kilograms (kg) | 14.5939 |
| stone | kilograms (kg) | 6.3502 |
| ton | kilograms (kg) | 1.0160E3 |
| ton | tonne (t) | 1.0160 |
| tonne | kilograms (kg) | 1E3 |
| tonne (t) | ton | 0.984 |
| tonnes (t) | short ton (sh tn) | 0.1023 |
| troy ounces (oz tr) | kilograms (kg) | 0.0311 |
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Power
| Unit of Measurement | Unit of Measurement | Conversion Factor multiply by |
|---|---|---|
| horsepower (hp) | Watts (W) | 7.457E2 |
| Watts (W) | horsepower (hp) | 1.341E-3 |
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Pressure
| Unit of Measurement | Unit of Measurement | Conversion Factor multiply by |
|---|---|---|
| millibars (mb) | Pascals (Pa) | 100 |
| millibars (mb) | standard atmosphere (atm) | 9.864E-4 |
| millimetres of mercury (mm Hg) | Pascals (Pa) | 1.3332E2 |
| Pascals (Pa) | millimetres of mercury (mm Hg) | 7.5E-3 |
| Pascals (Pa) | millibars (mb) | 0.01 |
| Pascals (Pa) | standard atmosphere (atm) | 9.8692E-6 |
| standard atmosphere (atm) | Pascals (Pa) | 101325 |
| standard atmosphere (atm) | millibars (mb) | 1.013E3 |
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Temperature
| Unit of Measurement | Unit of Measurement | Conversion Factor multiply by |
|---|---|---|
| Celsius (degrees C) | Fahrenheit (degrees F) | 9/5 * C + 32 |
| Celsius (degrees C) | Kelvin (degrees K) | C + 273.15 |
| Fahrenheit (degrees F) | Celsius (degrees C) | 5/9 * (t - 32) |
| Fahrenheit (degrees F) | Kelvin (degrees K) | 5/9 * (t + 459.67) |
| Kelvin (K) | Celsius (degrees C) | K - 273.15 |
| Kelvin (K) | Fahrenheit (degrees F) | 9/5 * K -459.67 |
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Velocity and Speed
| Unit of Measurement | Unit of Measurement | Conversion Factor multiply by |
|---|---|---|
| feet per minute (ft/min) | metres per second (m/s) | 5.080E-3 |
| kilometres per hour (km/h) | miles per hour (mph) | 0.6214 |
| knotts, international | meters per second (m/s) | 0.51444 |
| meters per second (m/s) | knotts, international | 1.9438 |
| metres per second (m/s) | miles per hour (mph) | 2.2369 |
| metres per second (m/s) | feet per minute (ft/min) | 1.968E2 |
| miles per hour (mph) | metres per second (m/s) | 0.4470 |
| miles per hour (mph) | kilometres per hour (km/h) | 1.6093 |
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Volume
| Unit of Measurement | Unit of Measurement | Conversion Factor multiply by |
|---|---|---|
| cubic centimetres (cm^3) | cubic inches (in^3) | 6.102E-2 |
| cubic feet (ft^3) | cubic metres (m^3) | 0.0283 |
| cubic feet (ft^3) | litres (L) | 0.2831 |
| cubic inches (in^3) | cubic millimetres (mm^3) | 1.6387E4 |
| cubic inches (in^3) | cubic centimetres (cm^3) | 16.3871 |
| cubic inches (in^3) | cubic metres (m^3) | 1.6387E-5 |
| cubic metres (m^3) | cubic yards (yd^3) | 1.3079 |
| cubic metres (m^3) | cubic feet (ft^3) | 35.32 |
| cubic metres (m^3) | cubic inches (in^3) | 6.102E4 |
| cubic metres (m^3) | US gallons (US gal) | 264.172 |
| cubic metres (m^3) | gallons (gal) | 2.199E2 |
| cubic metres (m^3) | litres (l) | 1E3 |
| cubic metres (m^3) | quarts (qt) | 8.798E2 |
| cubic metres (m^3) | pints (pt) | 1.759E3 |
| cubic metres (m^3) | gill | 7.039E3 |
| cubic metres (m^3) | fluid ounces (fl oz) | 3.5195E4 |
| cubic metres (m^3) | fluid drachm (fl dr) | 2.815E5 |
| cubic metres (m^3) | minim (min) | 1.689E7 |
| cubic millimetres (mm^3) | cubic inches (in^3) | 6.102E-5 |
| cubic yards (yd^3) | cubic metres (m^3) | 0.7646 |
| fluid drachm (fl dr) | cubic metres (m^3) | 3.5516E-8 |
| fluid ounces (fl oz) | cubic metres (m^3) | 2.8413E-5 |
| fluid ounces (fl oz) | millilitres (mL) | 28.4131 |
| gallons (gal) | cubic metres (m^3) | 4.5461E-3 |
| gallons (gal) | litres (L) | 4.54609 |
| gill | cubic metres (m^3) | 1.4206E-4 |
| litres (l) | cubic metres (m^3) | 1E-3 |
| litres (L) | cubic feet (ft^3) | 0.0353 |
| litres (L) | gallons (gal) | 0.22 |
| litres (L) | US gallons (US gal) | 0.2642 |
| litres (L) | minim (min) | 1.689E10 |
| millilitres (mL) | fluid ounces (fl oz) | 3.5195E-2 |
| minim (min) | cubic metres (m^3) | 5.9194E-8 |
| minim (min) | litres (L) | 5.9194E-11 |
| pints (pt) | cubic metres (m^3) | 5.6826E-4 |
| quarts (qt) | cubic metres (m^3) | 1.1365E-3 |
| US gallons (US gal) | cubic metres (m^3) | 3.7854E-3 |
| US gallons (US gal) | litres (L) | 3.7854 |
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Energy
| Unit of Measurement | Unit of Measurement | Conversion Factor multiply by |
|---|---|---|
| British thermal units (Btu) | joules (J) | 1.0551E3 |
| calories (cal) | joules (J) | 4.1868 |
| joules (J) | kilocalories (kcal) | 2.389E-4 |
| joules (J) | calories (cal) | 0.2389 |
| joules (J) | British thermal units (Btu) | 9.478E-4 |
| joules (J) | kilowatt hours (kW.h) | 2.7778E-7 |
| kilocalories (kcal) | joules (J) | 4.1868E3 |
| kilowatt hours (kW.h) | joules (J) | 3.6E6 |
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