YAML
SI Unit Prefixes - YAML
SI prefixes are prefixes used in the International System of Units (SI) to indicate multiples of units. They correspond to powers of 10 and range from large values (kilo, mega, giga, tera, etc.) to small values (milli, micro, nano, etc.). In 2022, four new prefixes (ronna, quetta, ronto, quecto) were added for the first time in 31 years, bringing the total to 24 prefixes currently in use. This system is essential for concisely expressing large and small numbers in science, technology, and everyday life.
International System of Units
SI units
unit conversion
prefixes
science
technology
- code: "Q"
slug: "quetta"
name: "quetta"
description: "SI prefix representing 10 to the power of 30."
powerOfTen: 30
decimalValue: "1000000000000000000000000000000"
category: "large"
- code: "R"
slug: "ronna"
name: "ronna"
description: "SI prefix representing 10 to the power of 27."
powerOfTen: 27
decimalValue: "1000000000000000000000000000"
category: "large"
- code: "Y"
slug: "yotta"
name: "yotta"
description: "SI prefix representing 10 to the power of 24."
powerOfTen: 24
decimalValue: "1000000000000000000000000"
category: "large"
- code: "Z"
slug: "zetta"
name: "zetta"
description: "SI prefix representing 10 to the power of 21."
powerOfTen: 21
decimalValue: "1000000000000000000000"
category: "large"
- code: "E"
slug: "exa"
name: "exa"
description: "SI prefix representing 10 to the power of 18."
powerOfTen: 18
decimalValue: "1000000000000000000"
category: "large"
- code: "P"
slug: "peta"
name: "peta"
description: "SI prefix representing 10 to the power of 15."
powerOfTen: 15
decimalValue: "1000000000000000"
category: "large"
- code: "T"
slug: "tera"
name: "tera"
description: "SI prefix representing 10 to the power of 12."
powerOfTen: 12
decimalValue: "1000000000000"
category: "large"
- code: "G"
slug: "giga"
name: "giga"
description: "SI prefix representing 10 to the power of 9."
powerOfTen: 9
decimalValue: "1000000000"
category: "large"
- code: "M"
slug: "mega"
name: "mega"
description: "SI prefix representing 10 to the power of 6."
powerOfTen: 6
decimalValue: "1000000"
category: "large"
- code: "k"
slug: "kilo"
name: "kilo"
description: "SI prefix representing 10 to the power of 3 (1000)."
powerOfTen: 3
decimalValue: "1000"
category: "large"
- code: "h"
slug: "hecto"
name: "hecto"
description: "SI prefix representing 10 to the power of 2 (100)."
powerOfTen: 2
decimalValue: "100"
category: "large"
- code: "da"
slug: "deca"
name: "deca"
description: "SI prefix representing 10 to the power of 1 (10)."
powerOfTen: 1
decimalValue: "10"
category: "large"
- code: "d"
slug: "deci"
name: "deci"
description: "SI prefix representing 10 to the power of -1 (0.1)."
powerOfTen: -1
decimalValue: "0.1"
category: "small"
- code: "c"
slug: "centi"
name: "centi"
description: "SI prefix representing 10 to the power of -2 (0.01)."
powerOfTen: -2
decimalValue: "0.01"
category: "small"
- code: "m"
slug: "milli"
name: "milli"
description: "SI prefix representing 10 to the power of -3 (0.001)."
powerOfTen: -3
decimalValue: "0.001"
category: "small"
- code: "μ"
slug: "micro"
name: "micro"
description: "SI prefix representing 10 to the power of -6 (0.000001)."
powerOfTen: -6
decimalValue: "0.000001"
category: "small"
- code: "n"
slug: "nano"
name: "nano"
description: "SI prefix representing 10 to the power of -9 (0.000000001)."
powerOfTen: -9
decimalValue: "0.000000001"
category: "small"
- code: "p"
slug: "pico"
name: "pico"
description: "SI prefix representing 10 to the power of -12."
powerOfTen: -12
decimalValue: "0.000000000001"
category: "small"
- code: "f"
slug: "femto"
name: "femto"
description: "SI prefix representing 10 to the power of -15."
powerOfTen: -15
decimalValue: "0.000000000000001"
category: "small"
- code: "a"
slug: "atto"
name: "atto"
description: "SI prefix representing 10 to the power of -18."
powerOfTen: -18
decimalValue: "0.000000000000000001"
category: "small"
- code: "z"
slug: "zepto"
name: "zepto"
description: "SI prefix representing 10 to the power of -21."
powerOfTen: -21
decimalValue: "0.000000000000000000001"
category: "small"
- code: "y"
slug: "yocto"
name: "yocto"
description: "SI prefix representing 10 to the power of -24."
powerOfTen: -24
decimalValue: "0.000000000000000000000001"
category: "small"
- code: "r"
slug: "ronto"
name: "ronto"
description: "SI prefix representing 10 to the power of -27."
powerOfTen: -27
decimalValue: "0.000000000000000000000000001"
category: "small"
- code: "q"
slug: "quecto"
name: "quecto"
description: "SI prefix representing 10 to the power of -30."
powerOfTen: -30
decimalValue: "0.000000000000000000000000000001"
category: "small"