📏 Length & height
166 cm in Feet
166 centimetres is 5 feet 5.4 inches, or 5.446 feet. That uses the international foot of exactly 0.3048 m, so the figure is exact to the precision shown.
The short answer
166 cm = 5 ft 5.4 in
Also written as 5.446 ft, or 65.35 inches.
About 166 cm in feet
166 cm is 5.446 ft because one foot is 30.48 cm: 166 ÷ 30.48 = 5.446. Going through inches gives the same answer and is easier to read: 166 ÷ 2.54 = 65.35 inches, which is 5 whole feet (60 inches) plus 5.35 inches.
Height is the one place where feet and inches are still used in everyday British and American writing, which is why a figure like 166 cm gets written both ways. 166 cm is close to the 162 cm median adult woman in the same surveys, so it reads naturally as 5′5.4″ on a form that asks for feet and inches.
For a passport, a medical record or a clothing size, quote 166 cm or 5 ft 5.4 in and not both: mixing the two invites a rounding argument. Two decimal places on 5.446 ft already represent about 3 mm, which is finer than any height measurement taken with a wall scale.
Written as a decimal, 166 cm is 1.66 m; in feet it is 5.446 ft, and in inches 65.35. Metric drawings use metres, British property listings use feet, and medical charts use centimetres, so all three turn up for the same 166 cm measurement.
166 cm in feet is the usual way to type this, and the answer is 5.446 ft, or 5 ft 5.4 in to the nearest tenth of an inch. Every one of those forms describes the same length, so pick the one the form in front of you asks for.
How the calculation works
- 166 cm ÷ 30.48 = 5.446 ft
- 166 cm × 0.0328084 = 5.446 ft
- 166 cm ÷ 2.54 = 65.35 in, then ÷ 12 = 5 ft 5.4 in
Reference values
| Centimetres | Feet and inches | Decimal feet |
|---|---|---|
| 161 cm | 5 ft 3.4 in | 5.282 ft |
| 162 cm | 5 ft 3.8 in | 5.315 ft |
| 163 cm | 5 ft 4.2 in | 5.348 ft |
| 164 cm | 5 ft 4.6 in | 5.381 ft |
| 165 cm | 5 ft 5 in | 5.413 ft |
| 166 cm | 5 ft 5.4 in | 5.446 ft |
| 167 cm | 5 ft 5.7 in | 5.479 ft |
| 168 cm | 5 ft 6.1 in | 5.512 ft |
| 169 cm | 5 ft 6.5 in | 5.545 ft |
| 170 cm | 5 ft 6.9 in | 5.577 ft |
| 171 cm | 5 ft 7.3 in | 5.610 ft |