# How Many Inches In 36 Feet To Inches, How Many Inches Are In 3 Ft

To convert a foot measurement to an inch measurement, multiply the length by the conversion ratio.

Since one foot is equal to 12 inches, you can use this simple formula to convert:

### How Many Inches are in a Foot?

There are **12** inches in a foot, which is why we use this value in the formula above.

1' = 12″

Our inch fraction calculator can add feet and inches together and it also automatically converts the results to US customary, imperial and SI metric values.

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Feet and inches are both units used to measure length. Keep reading to learn more about each unit of measure.

## Feet

The foot is a unit of linear length measure equal to 12 inches or 1/3 of a yard. Because the international yard is legally defined to be equal to exactly 0.9144 meters, one foot is equal to 0.3048 meters.<1>

The foot is a US customary and imperial unit of length. Feet can be abbreviated as *ft*; for example, 1 foot can be written as 1 ft.

Feet can also be denoted using the *′* symbol, otherwise known as a prime, though a single-quote (') is often used instead of the prime symbol for convenience. Using the prime symbol, *1 ft* can be written as 1′.

The foot is most commonly measured using either a standard 12″ ruler or a tape measure, though there are many other measuring devices available. Feet are sometimes referred to as linear feet, which are simply the measurement of length in feet.

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You might be interested in our feet and inches calculator, which can add feet with inches, centimeters, or meters.

## Inches

An inch is a unit of linear length measure equal to 1/12 of a foot or 1/36 of a yard. Because the international yard is legally defined to be equal to exactly 0.9144 meters, one inch is equal to 2.54 centimeters.<2>

The inch is a US customary and imperial unit of length. Inches can be abbreviated as *in*; for example, 1 inch can be written as 1 in.

Inches can also be denoted using the *″* symbol, otherwise known as a double-prime. Often a double-quote (“) is used instead of a double-prime for convenience. A double-prime is commonly used to express *1 in* as 1″.

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The standard ruler has 12″, and is a common measuring tool for measuring inches. They are also often measured using tape measures, which commonly come in lengths from 6' – 35'. Other types of measuring devices include scales, calipers, measuring wheels, micrometers, yardsticks, and even lasers.

We recommend using a ruler or tape measure for measuring length, which can be found at a local retailer or home center. Rulers are available in imperial, metric, or combination with both values, so make sure you get the correct type for your needs.

Need a ruler? Try our free downloadable and printable rulers, which include both imperial and metric measurements.

## Foot to Inch Conversion Table

Foot measurements converted to inches Feet Inches1' | 12″ |

2' | 24″ |

3' | 36″ |

4' | 48″ |

5' | 60″ |

6' | 72″ |

7' | 84″ |

8' | 96″ |

9' | 108″ |

10' | 120″ |

11' | 132″ |

12' | 144″ |

13' | 156″ |

14' | 168″ |

15' | 180″ |

16' | 192″ |

17' | 204″ |

18' | 216″ |

19' | 228″ |

20' | 240″ |

## References

National Institute of Standards and Technology, U.S. Survey Foot: Revised Unit Conversion Factors, https://www.nist.gov/pml/us-surveyfoot/revised-unit-conversion-factorsNational Institute of Standards and Technology, Checking the Net Contents of Packaged Goods, Handbook 133 – 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.133-2019.pdf