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Convert Slugs to Tonnes

1 slug is 0.01 t. One slug is exactly 0.0145939029372 tonnes.

One slug is 0.014593903 tonnes. To convert slugs to tonnes, multiply by 0.014593903; to go the other way, divide by 0.014593903 or multiply by 68.521766. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 44. The mass that one pound-force accelerates at one foot per second squared — 32.174 pounds.

Factor checked against the defining standard · How we check

Tonnes
0.01 t
Slugs × 0.014593903
1 * 0.01459390.015 t

1 slug in every weight unit

1 slug expressed in every weight unit
UnitValueExact factor
ounces514.7847769 oz× 514.784776903
pounds32.17404856 lb× 32.1740485564
stone2.298146325 st× 2.29814632546
US tons0.01608702428 ton× 0.0160870242782
micrograms14,593,902,940 mcg× 14,593,902,937.2
milligrams14,593,902.94 mg× 14,593,902.9372
centigrams1,459,390.294 cg× 1,459,390.29372
grams14,593.90294 g× 14,593.9029372
kilograms14.59390294 kg× 14.5939029372
slugs (as entered)1 slug—
tonnes0.01459390294 t× 0.0145939029372
carats72,969.51469 ct× 72,969.514686
troy ounces469.2048748 ozt× 469.204874781
grains225,218.3399 gr× 225,218.339895
long tons0.01436341453 LT× 0.0143634145341

Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

How do you convert slugs to tonnes? The converter and the working

  1. 1.Take the measurement in slugs.
  2. 2.Multiply by 0.014593903 — that is how many tonnes fit in one slug.
  3. 3.To go back the other way, divide by 0.014593903, or multiply by 68.521766.

Worked example: 25 slugs to tonnes

Formula
slug × 0.014593903 = t
Arithmetic
25 × 0.014593903 = 0.36 t
Answer
25 slug = 0.36 t

The factor is rounded for display; the figure above is computed from the full value.

Slugs to tonnes conversion table

Slugs to tonnes conversion table
SlugsTonnes
1 slug0.01 t
2 slug0.03 t
3 slug0.04 t
4 slug0.06 t
5 slug0.07 t
6 slug0.09 t
7 slug0.1 t
8 slug0.12 t
9 slug0.13 t
10 slug0.15 t
12 slug0.18 t
15 slug0.22 t
20 slug0.29 t
25 slug0.36 t
50 slug0.73 t
100 slug1.46 t
200 slug2.92 t
300 slug4.38 t
500 slug7.3 t
1000 slug14.59 t
2000 slug29.19 t
5000 slug72.97 t
10000 slug145.94 t

What is a slug?

The mass that one pound-force accelerates at one foot per second squared — 32.174 pounds. It exists so that F = ma works in US customary units without a conversion constant, and it is why American engineering statics is not simply pounds.

What is a tonne?

One thousand kilograms, also called the metric ton — 2,204.6 pounds.

How many tonnes are in a slug?

One slug is 0.014593903 tonnes. Going the other way, one tonne is 68.521766 slugs. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.

Every weight unit here

The whole group — 15 units with their symbols and the size of each one in kilograms — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a slug.

Source: NIST Handbook 44 — mass and weight

Cite this page

APA
Rule Calculator. (2026). Convert Slugs to tonnes. Rule Calculator. https://rulecalculators.com/convert/slug-to-tonne
MLA
"Convert Slugs to tonnes." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/slug-to-tonne.
Chicago
Rule Calculator. "Convert Slugs to tonnes." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/slug-to-tonne.

The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.

Questions people actually ask

How many tonnes are in a slug?
0.014593903. One thousand kilograms, also called the metric ton — 2,204.6 pounds.
How do I convert tonnes back to slugs?
Divide by 0.014593903, or multiply by 68.521766 — they are the same operation.

Other weight conversions

Tonnes to slugs — the same conversion the other way.

Calculators that work in weight