25 cm is about 9.84 inches, or about 9 27/32 inch (slightly less). It is exactly 250 mm. Divide centimeters by 2.54, because 1 inch is defined as exactly 2.54 cm.
25 cm ≈ 9 27/32″
Slightly less than 9 27/32″ (by 0.03 mm) · ≈ 9.843 in
- Inches
- ≈ 9.8425 in
- Nearest 1/16″
- 9 13/16″ 25 cm is 0.76 mm longer
- Nearest 1/32″
- 9 27/32″ 25 cm is 0.03 mm shorter
- Nearest 1/64″
- 9 27/32″ 25 cm is 0.03 mm shorter
How long is 25 cm?
25 cm = 25 ÷ 2.54 in ≈ 9.8425 in. On a tape measure that is 9 27/32 in (9.8438 in, 250.031 mm), and 25 cm is shorter than that by about 0.03 mm. In other units, 25 cm is exactly 250 mm and exactly 0.25 m, and ≈ 0.820 ft.
Numbers are hard to picture, so here is 25 cm drawn to scale next to real reference lengths.
Things that are about 25 cm long
Each size below comes from an official rule or a published specification. The note after each one says how close it is to 25 cm. Real objects vary.
A 25 cm ruler
A 25 cm ruler is exactly this length, 25 cm (about 9.84 in).
A 10-inch measurement
10 in is exactly 25.4 cm, so it is 4 mm longer than 25 cm. A 10-inch dinner plate or pan is sold under this nominal size.
A size 7 basketball
A men’s size 7 ball has a circumference of 75 to 78 cm, so it is about 23.9 to 24.8 cm across, up to about 1 cm under 25 cm.
A size 5 football
A size 5 football has a circumference of 68 to 70 cm, so it is about 21.6 to 22.3 cm across, about 3 cm under 25 cm.
An A4 sheet (long side)
A4 is 210 mm × 297 mm, so its long side is 29.7 cm, 4.7 cm longer than 25 cm.
25 cm to inches chart
Decimals are rounded to 3 places. In the fraction columns, + means the value is slightly longer than the fraction, − slightly shorter, and = exact.
| Centimeters (cm) | Inches (decimal) | Nearest 1/16″ | Nearest 1/32″ |
|---|---|---|---|
| 20 cm | 7.874 | 7 7/8″ − | 7 7/8″ − |
| 21 cm | 8.268 | 8 1/4″ + | 8 9/32″ − |
| 22 cm | 8.661 | 8 11/16″ − | 8 21/32″ + |
| 23 cm | 9.055 | 9 1/16″ − | 9 1/16″ − |
| 24 cm | 9.449 | 9 7/16″ + | 9 7/16″ + |
| 25 cm | 9.843 | 9 13/16″ + | 9 27/32″ − |
| 26 cm | 10.236 | 10 1/4″ − | 10 1/4″ − |
| 27 cm | 10.63 | 10 5/8″ + | 10 5/8″ + |
| 28 cm | 11.024 | 11″ + | 11 1/32″ − |
| 29 cm | 11.417 | 11 7/16″ − | 11 13/32″ + |
| 30 cm | 11.811 | 11 13/16″ − | 11 13/16″ − |
Frequently asked questions
How many inches is 25 cm?
25 cm is about 9.84 inches (9.8425 in), or about 9 27/32 inch.
How many mm is 25 cm?
25 cm is exactly 250 mm, because 1 cm is 10 mm.
Is 25 cm the same as 10 inches?
Almost. 10 inches is 25.4 cm, so 25 cm is 4 mm shorter than 10 inches.
How many feet is 25 cm?
25 cm is about 0.82 feet (0.8202 ft).
How do I measure 25 cm without a ruler?
A size 7 basketball is about 24 to 25 cm across. Use a ruler when it matters.
How do I convert cm to inches?
Divide the centimeters by 2.54. For 25 cm, 25 ÷ 2.54 ≈ 9.84 inches.