The International System of Measurement
Unit Conversion Calculator
SI Base Units:
- Mass - Kilogram
- Length - Meter
- Time - Second
- Temperature - Celsius degrees
- Amount of substance - Mole
- Electric current - Ampere
- Light intensity - Candela
Derived Units are combinations of base units.
(ps lab 024)
- Area = length2
- Volume = length3
- Density = mass / volume
Use this webtest
to practice density calculations.
SI Prefixes:
Those in red are very important in this chemistry class.
- Mega (M) - 1 000 000
- Kilo (k) - 1 000
- Deci (d) - 0 . 1
- Centi (c) - 0 . 01
- Milli (m) - 0 . 001
- Micro (u) - 0 . 000 001
- Nano (n) - 0 . 000 000 001
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Refer to these guidelines for correct use
to avoid common mistakes when using the International System of Units.
Important units of volume used in chemistry:
- Liter = Cubic Decimeter, dm3
- Milliliter = Cubic Centimeter, cm3
Use the following webtests to practice unit conversions
Volume
Mass
Distance 
Research Links:
Chemistry Class