length · International · Modern
SI base unit of length. Its definition fixes the speed of light in vacuum at exactly 299,792,458 m/s, with the second defined from the caesium-133 hyperfine frequency.
Converter
length · Europe · Historical
Flemish ell
approx.
Variant of ell
- Record
- M252
- Definition quality
- Historically documented
- Conversion mode
- multiplicative
- Calculator
- Approximately calculable
Definition
Cambridge gives the Flemish ell as 27 English inches.
Reference value
One Flemish ell is understood to be about 0.6858 metres.
History & use
Used in textile contexts connected with Flemish cloth trade.
Modern use
Retained primarily for historical, educational, or reference use rather than as a current standardized calculator unit.
Did you know?
Much shorter than an English ell.
Sources & evidence
Source tier Scholarly reference · confidence High
Related measurements
length · International · Modern
1 km = 1000 m by the SI prefix kilo-.
length · International · Modern
1 cm = 0.01 m by the SI prefix centi-.
length · International · Modern
1 mm = 0.001 m by the SI prefix milli-.
inch
inlength · UK / US · Modern / historical
1 international inch = exactly 0.0254 m.
foot
ftlength · UK / US · Modern / historical
1 international foot = exactly 0.3048 m.
yard
ydlength · UK / US · Modern / historical
1 international yard = exactly 0.9144 m.
mile
milength · UK / US · Modern / historical
1 international mile = exactly 1609.344 m = 1760 yd.