General Information

For an exact reference on International System values: the International System of Units (SI) comprises seven base units—the meter (m, including for measurements as tiny as a karyotype or a chromosome), the kilogram (kg), the second (s), the ampere (A), the kelvin (K, for temperature), the mole (mol), and the candela (cd, for instance for photosynthesis)—intended to quantify independent physical quantities. Each unit also has a symbol shown in parentheses. Sub-units are used, always referencing the base unit; for example, the mm (millimeter) is one-thousandth of a meter. These metric unit divisions serve a wide variety of purposes.

The figures are reasonably accurate for "reasonable" values. Inconsistent input values will produce inconsistent results despite an iterative convergence error threshold set at 0.001%. However, actual values may vary, as the author cannot guarantee the numerical accuracy and precision of JavaScript on your computer system.

How to Use the Calculators

Enter the known value in either of the 2 columns, then click in the other column where the result will appear. In more complex tables, enter a value in any field and the converter will automatically compute all other values.

You may freely use either a period "." or a comma "," as the decimal separator (there may still be 1 or 2 places where this is not handled). All values are provided for informational purposes only.