How accurate are the conversions?

Every unit is stored as its exact number of metres, so metric and imperial conversions are exact by definition — an inch is exactly 2.54 cm, a mile is exactly 1,609.344 m. Astronomical constants use their standard IAU definitions. Historical and regional units (cubit, ell, verst, Roman foot) use common modern equivalents and can vary a little by source.

Can it convert astronomical and sub-atomic units?

Yes. On the large scale it includes the light-second through light-year, the astronomical unit, parsec, kiloparsec, megaparsec, Earth radius and lunar distance. On the small scale it includes the ångström, micron, Bohr radius and Planck length — so you can convert across more than 60 orders of magnitude.

What is the difference between a foot and a US survey foot?

The international foot is exactly 0.3048 m. The US survey foot was very slightly longer (1200/3937 m, about 0.30480061 m) and was used for large-scale land surveying; it was officially retired at the end of 2022 but is still included here for older survey data.

What are some of the unusual units included?

For fun and completeness the converter includes the smoot (5 ft 7 in, from an MIT prank), the length of a US football field (100 yards), a full marathon (42.195 km), and historical or regional units such as the cubit, ell, span, nail, verst, Roman mile and the Scandinavian mile (10 km, still used in Sweden and Norway).

What are the ronna, quetta, ronto and quecto prefixes?

They are the newest SI prefixes, added in 2022 to extend the metric range. Ronna (10²⁷) and quetta (10³⁰) cover the very largest scales, while ronto (10⁻²⁷) and quecto (10⁻³⁰) cover the very smallest — all four are included so the metric range is complete.

Does the converter update live and work on mobile?

Yes. Results recalculate instantly as you type or change a unit — there is no submit button. The layout adapts to phones, the “every unit” list becomes a single column, and you can search or filter by category to find a unit quickly.

Mega Length Converter

The Mega Length Converter is a one-stop tool for every length and distance unit — enter a value in any unit and see it converted to all the others instantly, or pick a classic from/to pair at the top. It covers 74 units across the full spectrum: the complete metric (SI) prefix range from the quectometre (10⁻³⁰ m) to th…

VALUE & FROM

3.2808399

1 meter = 3.2808399 foot · 1 meter = 3.2808399 foot

1 meter IN EVERY UNIT

METRIC (SI)

IMPERIAL / US

NAUTICAL

TYPOGRAPHIC

ASTRONOMICAL

SCIENTIFIC

HISTORICAL & FUN

Created with❤️byeaglecalculator.com

HOW TO USE

1
Type a value and choose the unit you are converting FROM using the grouped dropdown.
2
Pick a unit to convert TO — the result appears instantly, along with the “1 from = x to” equivalence.
3
Scroll to the “in every unit” panel to see your value in all 74 units at once; use the search box or category chips to filter.
4
Tap any unit in the list to make it the TO unit, use ⇄ to swap, and Share or Embed the converter when done.

METER TO FOOT TABLE

meter (m)

foot (ft)

1 m

3.2808399 ft

2 m

6.5616798 ft

3 m

9.8425197 ft

4 m

13.12336 ft

5 m

16.404199 ft

10 m

32.808399 ft

15 m

49.212598 ft

20 m

65.616798 ft

25 m

82.020997 ft

50 m

164.04199 ft

100 m

328.08399 ft

1 meter = 3.2808399 foot · 1 foot = 0.3048 meter

QUICK REFERENCE

1 inch

2.54 cm

1 foot

30.48 cm

1 yard

0.9144 m

1 mile

1.609344 km

1 nautical mile

1.852 km

1 kilometer

0.621371 mi

1 meter

3.28084 ft

1 light-year

9.4607×10¹² km

1 AU

149,597,870.7 km

1 parsec

3.26156 ly

ABOUT LENGTH UNITS

Length is measured against the metre, the SI base unit, defined by the speed of light. Every unit here is stored as its exact number of metres, so a conversion is simply the input turned into metres and then into the target unit. The metric prefixes run the full modern range — from the quectometre (10⁻³⁰ m) to the quettametre (10³⁰ m), including the ronna and quetta prefixes added in 2022. The imperial and US units use their exact international definitions (an inch is exactly 2.54 cm), while astronomical units such as the light-year, astronomical unit and parsec, and sub-atomic scales like the ångström, Bohr radius and Planck length, extend the range in both directions. Historical and regional units — cubits, ells, versts, the Scandinavian mile — and playful ones like the smoot use common modern equivalents and can vary by source.

FREQUENTLY ASKED QUESTIONS

It supports 74 units across seven groups: metric (SI), imperial/US, nautical, typographic, astronomical, scientific, and historical & fun. That includes everything from the quectometre and Planck length at the tiny end to the parsec and quettametre at the vast end.

Metric: full SI prefix range, quecto- to quetta-.
Imperial/US: inch, foot, yard, mile, rod, chain, furlong, league.
Astronomical: light-year, AU, parsec, Earth radius, lunar distance.
Scientific: ångström, micron, Bohr radius, Planck length.

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Last updated: — · 74 length units · Exact SI & imperial definitions · Verified by the EagleCalculator team · Eagle-eyed accuracy for every calculation.