Struggling With Medical Conversions?
Here is a list of common medical conversions. The most widely used system of measurement used around the world is the metric system, otherwise known as the International System of Units (SI). However, the United States (US) often uses the imperial system.
The Metric (SI) will be detailed on the left while the Imperial (US) will be on the right. These two systems are compared and contrasted on this page in order to calculate them correctly. Click one of the links below to skip to that section.
How to convert Length Mass Volume Temperature Time Pin
Click here to download and print this medical conversions chart (pdf)
How to Convert
To convert a specific measurement, simply multiply that measurement by the one it is equal to. For fahrenheit (f) and celsius (c) conversions, use one of the formulas provided in the temperature section.
For example, If you want to know what 10 kilograms (kg) equals in pounds (lb), simply multiply (X) by 2.2. You do this because 1 kg = 2.2 lb as stated below. So the answer would be 10 X 2.2 = 22. Therefore, 10 kg = 22 lb.
You can also divide (/) in order to get the correct answer. Using the 10 kg example, 1 lb = 0.45 kg as stated below. Therefore, 10 / 0.45 = 22. This gives you the same answer which is 22 lb = 10 kg.
Use the calculator below as needed.
0 789+MS 456–M+ 123×M- 0.EXP÷MR ±√xC=MC |
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Length
Metric (SI)Abbreviations mm- millimeter cm - centimeter m - meter km - kilometer Equal to 1 km = 1,000 m = 100,000 cm = 1,000,000 mm 1 m = 100 cm = 1,000 mm 1 cm = 10 mm SI = US 1 mm = 0.04 in 1 cm = 0.39 in 1 cm = 0.03 ft 1 m = 39.37 in 1 m = 3.28 ft 1 m = 1.09 yd 1 km = 3,281 ft 1 km = 1,094 yd 1 km = 0.62 mi |
Imperial (US)Abbreviations in - inch ft - foot yd - yard mi - mile Equal to 1 mi = 1,760 yd = 5,280 ft = 63,360 in 1 yd = 3 ft = 36 in 1 ft = 12 in US = SI 1 in = 25.4 mm 1 in = 2.54 cm 1 in = 0.0254 m 1 ft = 304.8 mm 1 ft = 30.48 cm 1 ft = 0.3 m 1 yd = 914.4 mm 1 yd = 91.44 cm 1 yd = 0.9144 m 1 mi = 1,609 m 1 mi = 1.6 km |
Mass
Metric (SI)Abbreviations mcg - microgram mg - milligram g - gram kg - kilogram Equal to 1 kg = 1,000 g = 1,000,000 mg = 1,000,000,000 mcg 1 g = 1,000 mg = 1,000,000 mcg 1 mg = 1,000 mcg SI = US 1 g = 0.035 oz 1 kg = 35.27 oz 1 kg = 2.2 lb |
Imperial (US)Abbreviations oz - ounce lb - pound t - ton Equal to 1 t = 2,000 lb = 32,000 oz 1 lb = 16 oz US = SI 1 oz = 28,350 mg 1 oz = 28.35 g 1 oz = 0.028 kg 1 lb = 454 g 1 lb = 0.45 kg 1 t = 907 kg |
Volume
Metric (SI)Abbreviations mL - milliliter L - liter cc - cubic centimeter Equal to 1 L = 1,000 mL = 1,000 cc 1 mL = 1 cc SI = US 1 mL (cc) = 0.2 tsp 1 mL (cc) = 0.07 tbsp 1 mL (cc) = 0.03 fl oz 1 L = 203 tsp 1 L = 67.6 tbsp 1 L = 33.8 fl oz 1 L = 2.1 pt 1 L = 1.06 qt 1 L = 0.26 gal No longer widely used gtts - drops (values are highly approximated) 1 gtt = 0.05 mL (cc) 1 mL (cc) = 20 gtts |
Imperial (US)Abbreviations tsp - teaspoon tbsp - tablespoon fl oz - fluid ounce pt - pint qt - quart gal - gallon Equal to 1 gal = 4 qt = 8 pt = 128 fl oz = 256 tbsp = 768 tsp 1 qt = 2 pt = 32 fl oz = 64 tbsp = 192 tsp 1 pt = 16 fl oz = 32 tbsp = 96 tsp 1 fl oz = 2 tbsp = 6 tsp 1 tbs = 3 tsp US = SI 1 tsp = 5 mL (cc) 1 tbsp = 15 mL (cc) 1 oz = 30 mL (cc) 1 oz = 0.03 L 1 pt = 473 mL (cc) 1 pt = 0.47 L 1 qt = 946 mL (cc) 1 qt = 0.95 L 1 gal = 3,785 mL (cc) 1 gal = 3.79 L |
Temperature
Metric (SI)Abbreviation c - celsius SI = US 0 c = 32 f 100 c = 212 f |
Imperial (US)Abbreviation f - fahrenheit US = SI 0 f = -17.8 c 100 f = 37.8 c |
Temperature conversion formulas
|
c = ( f - 32 ) X ( 5 / 9 ) Example using 98.6 f c = ( 98.6 - 32 ) X ( 5 / 9 ) c = 66.6 X 0.556 c = 37 37 c = 98.6 f |
f = c X ( 9 / 5 ) + 32 Example using 37 c f = 37 X ( 9 / 5 ) + 32 f = 37 X 1.8 + 32 f = 66.6 + 32 f = 98.6 98.6 f = 37 c |
Time
Abbreviations
s (sec) - second
m (min) - minute
hr - hour
d - day
wk - week
mo - month
yr - year
Equal to
1 yr = 12 mo = 52 wk = 365 d = 8,760 hr = 525,600 m = 31,536,000 s
1 mo = 4.3 wk = 30 d = 730 hr = 43,800 m = 2,628,000 s
1 wk = 7 d = 168 hr = 10,080 m = 604,800 s
1 d = 24 hr = 1,440 m = 86,400 s
1 hr = 60 m = 3,600 s
1 m = 60 s
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