# Dr. Skantze's Conversion of Measurements Page

## SI Prefixes

```   1024     Y     (yotta)
1021     Z     (zetta)
1018     E     (exa)
1015     P     (peta)
1012     T     (tera)
109      G     (giga)
106      M     (mega)
103      k     (kilo)
102      h     (hekto)
101     da     (deka)
10-1     d     (deci)
10-2     c     (centi)
10-3     m     (milli)
10-6     µ     (micro)
10-9     n     (nano)
10-12    p     (pico)
10-15    f     (femto)
10-18    a     (atto)
10-21    z     (zepto)
10-24    y     (yocto)
```

## Length

1m = 10 dm = 100 cm = 1000 mm
1 mm = 1000 µm = 106 nm = 109 pm
1 Ångström (1 Å) = 10-10 m
1 nm = 10 Å

1 inch (in) = 2.54 cm
1 cm = 0.39370079 inches

1 foot = 12 inches = 30.48 cm
1 cm = 0.032808399 feet

1 yard (yd) = 3 feet = 91.44 cm

1 mile = 1760 yds = 1609.344 m = 1.609344 km
1 km = 0.62137119 miles

1 mil (Sweden) = 10 km

## Volume / Fluids / Capacity

1 liter (1 l) = 10 dl = 100 cl = 1000 ml

Since 1964 is 1 liter (1 l (in the USA often 1 L)) = 1 cubic dm (dm³) and 1 ml = 1 cubic cm (cm³).
Many books state, even today, that 1 ml = 1.000027 cc or 1.000028 cc.
Today 1 ml = 1 cc (1 cubic centimeter)!

1 US fluid dram (apothecaries') (fl dr) = 0.125 fl oz (US) = 60 minims = 3.696588 ml

1 fluid ounce (fl oz) (Imperial) = 28.413075 ml
1 ml = 0.0351950642442 fl oz (Imperial)

1 fluid ounce (US) = 29.5735295625 ml
1 ml = 0.0338140227018 fl oz (US)

1 Imperial pint (20 fl oz) = 0.5682450 L
1 l = 1.759804 Imperial pints = 35.1950642442 fl oz (Imperial)

1 US liq pint (16 fl oz) = 0.473176473 L
1 l = 2.11337641887 US liq pints = 33.8140227018 fl oz (US)

1 US quart (qt) = 0.946352946 L

1 Imperial gallon (160 fl oz) = 4.54609 L
1 l = 0.219969248299 Imperial gallon

1 US gallon (128 fl oz) = 3.785411784 L
1 l = 0.264172052358 US gallon

1 US dry gallon = 4.404760 l
1 l = 0.2270271 US dry gallons = 0.9081084 US dry quarts = 1.816217 US dry pints

1 US dry peck (pk) = 8.8097675 L

1 US dry bushel (bu) = 4 peck = 35.23907016688 L

1 US dry barrel (bbl) = 115.6271236 L

1 US liquid barrel (bbl) = 42 US liquid gallons = 158.987294928 L

## Weight

1 metric ton = 1000 kg
1 kg = 10 hg = 1000 g
1 g = 1000 mg
1 mg = 1000 µg (mkg)
1 µg = 1000 ng
1 ng = 1000 pg
1 pg = 1000 fg

1 grain = 0.0022857143 ounces (avoirdupois')
1 grain = 0.0020833 ounces (apothecaries' or troy)
1 grain = 0.0647981 g
1 g = 15.432358 grains

1 dram (avoirdupois') = 27.34375 grains = 1/16 ounce (avoirdupois')= 1.7718452 g
1 dram (apothecaries' or troy) = 60 grains = 1/8 ounce (apothecaries') = 3.8879346 g

1 ounce (oz) (avoirdupois') = 16 drams (dr) (avoirdupois weight) = 7.291666 drams (apothecaries' weight) = 28.349523 g
1 ounce (apothecaries' or troy) (oz t) = 8 drams (apothecaries') = 17.554286 drams (avoirdupois') = 31.1034768 g
1 g = 0.035273962 oz (avoirdupois')
1 g = 0.0321507 oz (apothecaries' or troy)

1 pound (1 lb) = 16 ounces = 0.45359237 kg
1 pound (avoirdupois') = 0.45359237 kg = 453.59237 g
1 pound (apothecaries' or troy) = 0.37324172 kg = 373.24172 g
1 kg = 2.2046226 lb (avoirdupois')

1 stone (14 lb) = 0.14 centals = 6.35029318 kg

1 hundredweight (Brit. cwt.) = 1 hundredweights (long) = 112 pounds = 50.802345 kg
1 U.S. centerweight (U.S. cwt.) = 1 hundredweights (short) = 100 pounds = 45.359237 kg

1 long ton = 2240 lb (England) = 1016.0469 kg
1 short ton = 2000 lb (USA) = 907.18474 kg
1 ton (Sweden) = 1000 kg = 1 tonnes (t) = 1 metric tons

## Temperature

Centigrade = Celsius = °C = (°F - 32)/1.8
Fahrenheit = °F = (1.8×°C) + 32

0 °C = 32 °F
100 °C = 212 °F
- 40 °C = - 40 °F

## Energy

1 calorie = 4.18400 joules (Applies to chemistry and biochemistry) = (Heating 1 g of water 1 degree Celsius (1 Centigrade)).
1 Calorie (1 Cal) = 1000 calories (1000 cal) = 1 kcal
Many authors are quite sloppy and use "calories" and "grams" instead of the more correct terms "kcal" and "g".
Don't follow their steps or the advantage of a stringent use will be lost. The SI system use joule instead of calories. 1 cal (thermochemical) = 4.184 joule (J). 1 g of carbohydrates or protein equals ca. 17 kJ.
If you only consumed 5000 calories ( = 5 kcal) a day you would starve to death in less than two months. A normal consumption is approximately 2500 kcal/day (2 500 000 cal/day).
1 g of glucose = 3.81 kcal
1 g of palmitate (fat) = 9.30 kcal
1 g of alcohol (1.4 ml) = 7 kcal
1 g of protein = ca. 4 kcal (It's actually a lot more and differs between the different amino acids, but the kidneys consume a lot of energy to relieve the body from the resulting urea. The net gain is 4 kcal/g.

## Kitchen measures (Mått för matlagning)

### In North America

1 teaspoonful = 4.92892159375 ml
1 tablespoonful = 3 teaspoonful = 14.78676478125 ml
1 standard cup = 8 fl oz = 236.5882365 ml

### In Britain

1 teaspoonful = 1/8 fl oz = 3.551634375 ml
1 dessertspoonful = 1/4 fl oz = 7.10326875 ml
1 tablespoonful = 1/2 fl oz = 14.2065375 ml

### In Sweden

1 kryddmått (Sw) = 1 ml
1 knivsudd (Sw) = 1 knife's-point
1 tesked (Sw) = 1 teaspoonful = 5 ml
1 matsked (Sw)= 1 tablespoonful = 15 ml

As Netscape users often don't understand the conveniance with Bookmark Pages
I've put some good links here. I'll hope you'll find what you look for. Good luck!

Bo Johansson's Professional Measurement Conversion
Also calculations! Recommended.

MegaConverter Powerful! Many uncommon units! A little time consuming.

A Blockbuster of Links: Martindale's 'The Reference Desk' or more specifically Calculators On-Line

National Institute of Standards and Technology, NIST.
Print The NIST Reference on Constants, Units and Uncertainty.
86 pages with the help of Acrobat® Reader.

U.S. Metric Association (USMA), Inc. SI Metric System. Lots of links! Home