20 cm to inches
Instant conversion for 20 cm — decimal inches, the nearest 1/64 fraction , using the same engine as the cm to inches hub.
20cm to inches conversion
- Decimal inches
- —
- Nearest 1/64
- —
1 in = 25.4 mm
20 centimeters is equal to 7.8740 inches.
- Decimal inches: 7.8740 in
- Nearest 1/64: 7 7/8 in (+0.025 mm from the exact size)
How many inches is 20cm?
20 centimeters is equal to 7.8740 inches. That is the exact international conversion ( 1 in = 2.54 cm). On a fractional chart, the nearest 1/64 is 7 7/8 in.
How to convert 20cm to inches
Formula: inches = centimeters ÷ 2.54 (exact). Or multiply by 0.393701 for a quick estimate of the same definition.
- Start with 20 cm.
- Divide by 2.54: 20 ÷ 2.54 = 7.8740 in.
- Reverse check: 7.8740 × 2.54 = 20 — the conversion round-trips cleanly.
About the fraction result
The decimal column is exact (shown to four places). The fraction is the nearest 1/64 approximation used on rulers and bit charts — so the two can disagree. Here, 20 cm = 7.8740 in exactly, while 7 7/8 in differs by +0.025 mm. The converter disclaimer (“rounded to the nearest 1/64 fraction”) exists so that difference is never mistaken for a data error.
How many inches is 20 cm?
20 cm equals 7.8740 inches exactly (international inch). On a fractional chart the nearest 1/64 is 7 7/8 in — a tiny oversize versus the decimal.
This page is for everyday and height context — rulers, paper, and common cm sizes — not shop drill charts. For more examples and a full cm chart, see the cm to inches hub.
20cm to inches conversion chart
Local density around 20 cm (±1 cm, every 0.1 cm). For the full 0–100 cm table, use the cm to inches hub chart.
| cm | inches (decimal) | inches (nearest 1/64) |
|---|---|---|
| 19 | 7.4803 | 7 31/64 |
| 19.1 | 7.5197 | 7 33/64 |
| 19.2 | 7.5591 | 7 9/16 |
| 19.3 | 7.5984 | 7 19/32 |
| 19.4 | 7.6378 | 7 41/64 |
| 19.5 | 7.6772 | 7 43/64 |
| 19.6 | 7.7165 | 7 23/32 |
| 19.7 | 7.7559 | 7 3/4 |
| 19.8 | 7.7953 | 7 51/64 |
| 19.9 | 7.8346 | 7 53/64 |
| 20 | 7.8740 | 7 7/8 |
| 20.1 | 7.9134 | 7 29/32 |
| 20.2 | 7.9528 | 7 61/64 |
| 20.3 | 7.9921 | 7 63/64 |
| 20.4 | 8.0315 | 8 1/32 |
| 20.5 | 8.0709 | 8 5/64 |
| 20.6 | 8.1102 | 8 7/64 |
| 20.7 | 8.1496 | 8 5/32 |
| 20.8 | 8.1890 | 8 3/16 |
| 20.9 | 8.2283 | 8 15/64 |
| 21 | 8.2677 | 8 17/64 |
FAQ
How many inches is 20 cm?
20 centimeters is equal to 7.8740 inches. The nearest 1/64 fraction is 7 7/8 in.
Is 20 cm 8 inches?
Almost, but not exactly. 20 cm = 7.8740 in, while 8 in = 20.32 cm — about 0.32 cm (≈1/8 in) short of 8 inches.
What is 20 cm in fractional inches?
The exact decimal is 7.8740 in. Rounded to the nearest 1/64, that is 7 7/8 in — slightly larger than the exact size by about 0.025 mm.