Inch to Microinch Converter
Convert Inch (in) to Microinch (µin) instantly. 1 in = 1,000,000 µin.
Length Converter
31 units available
1 in = 1,000,000 µin
Formula:
µin = in × 1,000,000With your value: 1 in = 1,000,000 µin
How big is that?
Everyday references on a logarithmic scale, all expressed in inch so you can sanity-check the result.
Other Inch to Microinch conversions
Inch to Microinch Conversion Table
| Inch (in) | Microinch (µin) |
|---|---|
| 0.5 | 500,000 |
| 1 | 1,000,000 |
| 2 | 2,000,000 |
| 5 | 5,000,000 |
| 10 | 10,000,000 |
| 15 | 15,000,000 |
| 20 | 20,000,000 |
| 25 | 25,000,000 |
| 50 | 50,000,000 |
| 100 | 100,000,000 |
| 250 | 250,000,000 |
| 500 | 500,000,000 |
| 1000 | 1,000,000,000 |
Microinch to Inch Conversion Table
| Microinch (µin) | Inch (in) |
|---|---|
| 0.5 | 5.000000e-7 |
| 1 | 1.000000e-6 |
| 2 | 2.000000e-6 |
| 5 | 5.000000e-6 |
| 10 | 1.000000e-5 |
| 15 | 1.500000e-5 |
| 20 | 2.000000e-5 |
| 25 | 2.500000e-5 |
| 50 | 5.000000e-5 |
| 100 | 1.000000e-4 |
| 250 | 0.00025 |
| 500 | 0.0005 |
| 1000 | 0.001 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Inch (in)
Length
1 inch = 25.4 mm exactly, fixed by the 1959 international yard and pound agreement.
Source: International Yard and Pound Agreement of 1959; NIST Federal Register Notice 59-5442
US, UK, Canada, Australia, New Zealand, South Africa · Reviewed 2026-07-01
Microinch (µin)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Inch to Microinch
To convert from Inch (in) to Microinch (µin), multiply the value by 1,000,000.
Formula: µin = in × 1,000,000
Reverse: in = µin × 0.000001
Step-by-Step Example
- Start with your value in Inch. For example: 5 in
- Multiply by the conversion factor: 5 x 1,000,000
- The result is: 5,000,000 µin
About Inch
The inch is an imperial unit equal to 1/12 of a foot or 2.54 centimeters. It is widely used in the US and UK for small measurements.
Fun Fact: The inch was historically defined as the width of a man's thumb.
Common uses: screen sizes, construction, clothing.
About Microinch
The microinch (µin) is a unit of distance and length. One microinch equals 2.540000 × 10^-8 metres. UnitConvertLab converts it against every other length unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: length calculations, engineering and science, education.
Frequently Asked Questions
How many Microinch are in 1 Inch?
There are exactly 1,000,000 Microinch in 1 Inch. This means the conversion factor from Inch to Microinch is 1,000,000.
What is the formula to convert Inch to Microinch?
The formula to convert Inch to Microinch is: µin = in × 1,000,000. For example, to convert 10 Inch to Microinch, you would multiply 10 by 1,000,000.
What is a Inch?
The inch is an imperial unit equal to 1/12 of a foot or 2.54 centimeters. It is widely used in the US and UK for small measurements.
What is a Microinch?
The microinch (µin) is a unit of distance and length. One microinch equals 2.540000 × 10^-8 metres. UnitConvertLab converts it against every other length unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Inch?
The Inch is commonly used in screen sizes, construction, clothing.
Related Length Conversions
Cite this page
UnitConvertLab. (2026). Inch to Microinch converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/inch-to-microinch