7/8 Inch as a Decimal
Answer
0.875 in
7/8 in = 0.875 in = 22.225 mm
7/8 inch is a major mark on a tape measure, sitting just 1/8 inch short of a full inch. As a decimal it equals 0.875 inches, or 22.225 millimeters, exactly midway between 13/16 inch (0.8125 in) and 15/16 inch (0.9375 in). It is a common socket size for larger fasteners and spark plugs, and a standard hole saw size for installing cabinet locks and door hardware.
Try another fraction
/
Decimal
0.875
Millimeters
22.225 mm
Related values
| Value | Result |
|---|---|
| Decimal | 0.875 in |
| Millimeters | 22.225 mm |
| Centimeters | 2.2225 cm |
| Feet | 0.072917 ft |
How the conversion works
- Divide. Divide the numerator (7) by the denominator (8) to convert the fraction into a decimal.
- Decimal result. 7 ÷ 8 = 0.875. This is an exact, terminating decimal because 8 is a power of two.
- Convert to mm. Multiply the decimal by 25.4, the number of millimeters in one inch: 0.875 × 25.4 = 22.225 mm, the figure to use when matching a metric spec sheet.
Frequently Asked Questions
7/8 equals 0.875 as a decimal. Divide the numerator, 7, by the denominator, 8, to get this result. It is a major mark on a tape measure, sitting just 1/8 inch short of a full inch.
Related Tools
🔢
Decimal to Fraction
Any decimal
➗
Fraction to Decimal
Any fraction
📐
MM to Inches
Metric converter
📊
Decimal Chart
Full reference
🔢
0.875 as a Fraction
Decimal equivalent
📏
15/16 Inch as Decimal
Next size up
Back to the main calculator.