7/8 Inch to MM
Fractional inch to millimeters
7/8 inch (7/8β³)
22.225 mm
= 2.2225 cm Β· 1 inch = 25.4 mm exactly
π‘ Commonly used for AC lines, large hose.
Nearby fractional inches
| Fraction | mm | cm |
|---|---|---|
| 3/4β³ | 19.05 mm | 1.905 cm |
| 13/16β³ | 20.6375 mm | 2.0637 cm |
| 7/8β³ | 22.225 mm | 2.2225 cm |
| 15/16β³ | 23.8125 mm | 2.3813 cm |
| 1/1β³ | 25.4 mm | 2.54 cm |
FAQ
How many mm is 7/8 inch?
7/8 inch equals 22.225 mm. Since one inch is defined as exactly 25.4 mm, the result is 25.4 Γ 7 Γ· 8.
Why is the value exact?
The international yard and pound agreement of 1959 fixed the inch at exactly 25.4 mm, so fractional inch conversions terminate rather than repeat.
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