St. Cloud Technical and Community College



SI Prefixes

Prefix Symbol Meaning Numerical Value

Tera T trillion 1x1012 1,000,000,000,000

Giga G billion 1x109 1,000,000,000

Mega M million 1x106 1,000,000

Kilo k thousand 1x103 1,000

Hecto h hundred 1x102 100

Deka da ten 1x101 10

Base Units liter (L), grams (g), meter (m), second (s)

Deci d tenth 1x10-1 0.1

Centi c hundredth 1x10-2 0.01

Milli m thousandth 1x10-3 0.001

Micro μ millionth 1x10-6 0.000 001

Nano n billionth 1x10-9 0.000 000 001

Pico p trillionth 1x10-12 0.000 000 000 001

Femto f quadrillionth 1x10-15 0.000 000 000 000 0001

SI Prefixes

Prefix Symbol Meaning Numerical Value

Tera T trillion 1x1012 1,000,000,000,000

Giga G billion 1x109 1,000,000,000

Mega M million 1x106 1,000,000

Kilo k thousand 1x103 1,000

Hecto h hundred 1x102 100

Deka da ten 1x101 10

Base Units liter (L), grams (g), meter (m), second (s)

Deci d tenth 1x10-1 0.1

Centi c hundredth 1x10-2 0.01

Milli m thousandth 1x10-3 0.001

Micro μ millionth 1x10-6 0.000 001

Nano n billionth 1x10-9 0.000 000 001

Pico p trillionth 1x10-12 0.000 000 000 001

Femto f quadrillionth 1x10-15 0.000 000 000 000 0001

SI Prefixes

Prefix Symbol Meaning Numerical Value

Tera T trillion 1x1012 1,000,000,000,000

Giga G billion 1x109 1,000,000,000

Mega M million 1x106 1,000,000

Kilo k thousand 1x103 1,000

Hecto h hundred 1x102 100

Deka da ten 1x101 10

Base Units liter (L), grams (g), meter (m), second (s)

Deci d tenth 1x10-1 0.1

Centi c hundredth 1x10-2 0.01

Milli m thousandth 1x10-3 0.001

Micro μ millionth 1x10-6 0.000 001

Nano n billionth 1x10-9 0.000 000 001

Pico p trillionth 1x10-12 0.000 000 000 001

Femto f quadrillionth 1x10-15 0.000 000 000 000 0001

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