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Reference

Unit Prefixes & Frequency

Powers-of-ten metric prefixes from pico to peta, and a frequency grid for moving a value between hertz, kilohertz, megahertz, and gigahertz.

Powers of Ten

The metric prefixes you meet around clocks and computing. Each step is a factor of 1000.
PrefixSymbolPowerFactor
picop10−120.000 000 000 001
nanon10−90.000 000 001
microµ10−60.000 001
millim10−30.001
(base unit)1001
kilok1031 000
megaM1061 000 000
gigaG1091 000 000 000
teraT10121 000 000 000 000
petaP10151 000 000 000 000 000

Frequency Converter

Type a value, pick its unit, and read it back in the others.
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A few anchor values across the same four units, with each clock's period in the last column.
HzkHzMHzGHzPeriod

Period → Frequency

Go the other way: enter a clock period and read the frequency it corresponds to.
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Common Clock Speeds

Period is just 1 ÷ frequency. A part clocked at 1 MHz advances once every microsecond, so faster clocks mean shorter periods. A few machines you might know.
Machine / partClockPeriod