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Scientific Unit Abbreviations
A reference table of scientific units and their abbreviations as well as some prefixes used in the international system of units.
| Unit Abbreviations | |
| A | ampere |
| Å | angstrom |
| atm | atmosphere |
| Bq | becquerel |
| C | coulomb |
| °C | Celsius, centigrade |
| cal | calorie |
| cc | cubic centimeter |
| Ci, c | Curie |
| cm | centimeter |
| cpm | counts per minute |
| Da | dalton |
| dam | decameter |
| dB | decibel |
| dl | deciliter |
| dm | decimeter |
| dpm | disintegrations per minute |
| dps | disintegrations per second |
| dr | dram |
| F | faraday |
| °F | Fahrenheit |
| fl dr | fluid dram |
| Fl, fld | fluid |
| fl oz | fluid ounce |
| ft | foot |
| G | gauss |
| gal | gallon |
| GBq | gigabecquerel |
| g, gm | gram |
| gtt | drop |
| h | hour |
| Hz | hertz |
| in | inch |
| IU | international unit |
| J | joule |
| K | kelvin |
| kcal | kilocalorie |
| kDa | kilodalton |
| kg | kilogram |
| kJ | kilojoule |
| km | kilometer |
| kPa | kilopascal |
| L, l | liter |
| L/min | liters per minute |
| lb. | pound |
| M | molar, thousand, meter |
| m | meter |
| mcg, µg | microgram |
| mCi, mc | millicurie |
| mEq | milliequivalent |
| mEq/L | milliequivalent per liter |
| mg, mgm | milligram |
| min | minute |
| ml, mL | milliliter |
| mm | millimeter |
| mmHg | millimeters of mercury |
| mol | mole |
| mol wt, MW, MWt | molecular weight |
| mµ | millimicron |
| N | normal (concentration) |
| nm | nanometer |
| oz. | ounce |
| qt | quart |
| Pa | pascal |
| ppm | parts per million |
| pt | pint |
| r | revolution |
| rad | radiation-absorbed dose |
| rev/min, rpm | revolutions per minute |
| S | Svedberg unit |
| s | second |
| SI | International System of Units |
| Tbsp | tablespoon |
| tsp | teaspoon |
| U | unit |
| µ, mu | micron |
| V | volt |
| vol% | volume percent |
| v/v | volume per volume |
| W | watt |
| w/v | weight per volume |
| y | year |
| Prefixes | ||
| giga- | G | 109 |
| mega- | M | 106 |
| kilo- | k | 103 |
| hecto- | h | 102 |
| deka-/deca- | da | 10 |
| deci- | d | 10-1 |
| centi- | c | 10-2 |
| milli- | m | 10-3 |
| micro | mc, µ | 10-6 |
| nano | n | 10-9 |
| pico | p | 10-12 |
| femto | f | 10-15 |
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