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
Scottish ell
approx.
Variant of ell
- Record
- M253
- Definition quality
- Historically documented
- Conversion mode
- multiplicative
- Calculator
- Approximately calculable
Regional historical standard; do not generalize to all Scotland/periods without further detail.
Definition
Cambridge gives the Scottish ell as 37.2 English inches.
Reference value
One Scottish ell is understood to be about 0.94488 metres.
History & use
Scottish industrial/history sources preserve the ell as a cloth measure.
Modern use
Retained primarily for historical, educational, or reference use rather than as a current standardized calculator unit.
Did you know?
It sits between Flemish and English ell lengths.
Sources & evidence
Source tier Scholarly reference · confidence High
Related measurements
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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.