Convert pounds to tonnes

1 lb = 0.00045359237 t — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.

0.000 453 592 37t
✓ Exact 1 lb = 0.000 453 592 37 t
As a fraction: 45359237/100000000000
More converter tools

Readable results

Ranges, ± tolerances, feet/inches and clock durations work in the value field.

Unit picker

Export this result

1 lb = 0.00045359237 t
Show this value in all 34 weight & mass units
  • Megagrams Mg 0.000 453 592 37
  • Kilograms kg 0.453 592 37
  • Hectograms hg 4.535 923 7
  • Decagrams dag 45.359 237
  • Grams g 453.592 37
  • Decigrams dg 4535.9237
  • Centigrams cg 45 359.237
  • Milligrams mg 453 592.37
  • Micrograms µg 453 592 370
  • Nanograms ng 453 592 370 000
  • Picograms pg 453 592 370 000 000
  • Tonnes t 0.000 453 592 37
  • Kilotonnes kt 0.000 000 453 592 37
  • Megatonnes Mt 4.5359237e-10
  • Quintals q 0.004 535 923 7
  • Carats ct 2267.961 85
  • Pounds lb 1
  • Ounces oz 16
  • Drams dr 256
  • Grains gr 7000
  • Stones st 0.071 428 571 428 6
  • Hundredweight (US)s cwt (US) 0.01
  • Hundredweight (UK)s cwt (UK) 0.008 928 571 428 57
  • Short ton (US)s tn 0.0005
  • Long ton (UK)s LT 0.000 446 428 571 429
  • Troy ounces ozt 14.583 333 333 3
  • Troy pounds lbt 1.215 277 777 78
  • Pennyweights dwt 291.666 666 667
  • Slugs slug 0.031 080 950 171 6
  • Atomic mass units u 2.73159709693e+26
  • Electron masss mₑ 4.97939689714e+29
  • Planck masss mₚ 20 841 080.869
  • Earth masss M🜨 7.59506329326e-26
  • Solar masss M☉ 2.2805963538e-31

Every row is Pound (lb) converted through the kilogram, in exact rational arithmetic.

How to convert pounds to tonnes

Multiply the number of pounds by 0.00045359237 to get tonnes.

The exact factor is 0.00045359237 — as a fraction, 45359237/100000000000.

Pound: Exactly 0.453 592 37 kg since 1959.

Pound to Tonne conversion table

Pounds (lb) Tonnes (t)
1 lb 0.000 453 592 37
2 lb 0.000 907 184 74
3 lb 0.001 360 777 1
5 lb 0.002 267 961 9
10 lb 0.004 535 923 7
20 lb 0.009 071 847 4
25 lb 0.011 339 809
50 lb 0.022 679 619
100 lb 0.045 359 237
250 lb 0.113 398 09
500 lb 0.226 796 19
1000 lb 0.453 592 37

Tonne to Pound conversion table

Tonnes (t) Pounds (lb)
1 t 2204.6226
2 t 4409.2452
3 t 6613.8679
5 t 11 023.113
10 t 22 046.226
20 t 44 092.452
25 t 55 115.566
50 t 110 231.13
100 t 220 462.26
250 t 551 155.66
500 t 1 102 311.3
1000 t 2 204 622.6

Frequently asked

How many tonnes are in a pound?

One pound equals 0.00045359237 tonnes (lb → t). That figure is exact, not rounded.

How do you convert pounds to tonnes?

Multiply the number of pounds by 0.00045359237 to get tonnes.

What is 1 t in pounds?

One tonne is 2204.622622 pounds.

What is 10 lb in t?

10 lb = 0.004 535 923 7 t.

What exactly is a pound?

Exactly 0.453 592 37 kg since 1959.

Related conversions

Settings

Theme

System follows your operating system and changes with it.

Text size
High contrast

Maximises text and border contrast and removes the grid background.

Graph-paper background

Round to
Notation
Thousands separators
Decimal mark
Nearest fraction

Shows the result as the nearest tape-measure fraction, with the error it costs.


Accessibility & interaction
Reduce motion Stops interface animations even when the operating system does not.
Underline links Keeps links visually distinct without relying on colour.
Larger touch targets Makes buttons and form controls easier to tap.
Shorter reading lines Limits article width for easier scanning.
Monochrome display Removes colour as an information cue.
Always-visible focus Makes the keyboard focus ring persistent and stronger.
Verbose screen-reader results Announces the complete conversion equation.
Sticky action bars Keeps converter and calculator actions within reach.
Select values on focus Replaces a value immediately when you start typing.
Left-handed mobile layout Moves key mobile actions toward the left thumb.

Your data

Settings, recent conversions and favourites live in this browser only. Nothing is sent anywhere.

Offline library