050 inches equals 1.27 millimeters. This is calculated by multiplying 0.50 inches by the conversion factor of 25.4 millimeters per inch.
To convert inches to millimeters, the value in inches is multiplied by 25.4 because one inch is exactly 25.4 millimeters. So 0.50 inches times 25.4 gives the result in millimeters.
Conversion Tool
Result in mm:
Conversion Formula
The formula to convert inches to millimeters is:
millimeters = inches × 25.4
This works because one inch is defined exactly as 25.4 millimeters. So multiply any inch value by 25.4 to get millimeters.
For example, converting 0.50 inches:
- Start with 0.50 inches
- Multiply by 25.4: 0.50 × 25.4 = 12.7
- Result is 12.7 millimeters
Conversion Example
- 2 inches to mm
- 2 inches × 25.4 = 50.8 mm
- 5.25 inches to mm
- 5.25 × 25.4 = 133.35 mm
- 0.75 inches to mm
- 0.75 × 25.4 = 19.05 mm
- 10 inches to mm
- 10 × 25.4 = 254 mm
- 1.1 inches to mm
- 1.1 × 25.4 = 27.94 mm
Conversion Chart
| Inches | Millimeters (mm) |
|---|---|
| 25.0 | 635.0 |
| 35.0 | 889.0 |
| 45.0 | 1143.0 |
| 50.0 | 1270.0 |
| 55.0 | 1397.0 |
| 60.0 | 1524.0 |
| 65.0 | 1651.0 |
| 70.0 | 1778.0 |
| 75.0 | 1905.0 |
Use this chart by finding the inch value you want to convert and then reading across to the millimeter column. This gives a quick reference without needing to calculate each time.
Related Conversion Questions
- How many millimeters are in 0.50 inches exactly?
- What is the formula to convert 0.50 inches to mm?
- Is 0.50 inches the same as 12.7 millimeters?
- Can I convert 0.5 inches to mm without a calculator?
- What is 0.50 inch in millimeters rounded?
- How do I convert half an inch to millimeters?
- Does 0.50 inches equal 1.27 centimeters or millimeters?
Conversion Definitions
Inches: An inch is a unit of length in the imperial and US customary systems. It is equal to 1/12 of a foot and exactly 25.4 millimeters. Inches are commonly used in the United States and some other countries for measuring length, height, and width.
Millimeters (mm): A millimeter is a metric unit of length equal to one thousandth of a meter. It is commonly used for measuring small distances or thicknesses in engineering, manufacturing, and everyday applications worldwide.
Conversion FAQs
Why is one inch exactly 25.4 millimeters?
The length of one inch was internationally standardized to exactly 25.4 millimeters in 1959 by agreement among English-speaking countries. This replaced older definitions based on physical artifacts or approximations to create consistency worldwide.
Can I convert inches to millimeters by dividing instead of multiplying?
No, converting inches to millimeters requires multiplication by 25.4 because millimeters are smaller units. Dividing would give incorrect smaller values. Always multiply inches by 25.4 to get millimeters.
Does converting 0.50 inches to 12.7 mm lose precision?
Converting 0.50 inches to 12.7 mm is exact because 0.50 × 25.4 equals 12.7 exactly. However, sometimes rounding may occur with other values depending on decimal places used in calculations.
Is 0.50 inches a common measurement in manufacturing?
Yes, 0.50 inches or half an inch is a common size used in many manufacturing and construction fields. Knowing its metric equivalent helps when working with international specifications.
How to convert fractional inches like 1/2 inch to millimeters?
You first convert the fraction to decimal (1/2 = 0.5), then multiply by 25.4. So 0.5 inches × 25.4 = 12.7 mm. This method works for any fraction of an inch.

