Convert Slug to Pound
Convert slugs to pounds instantly. 1 slug = 32.1740485564 pound — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Pound to Slug converter for the reverse conversion.
Units explained
Slug
The slug is the mass that accelerates at 1 ft/s^2 under a force of one pound-force, about 14.59 kg.
Coined in the early 20th century for the British gravitational (engineering) system.
US and British engineering dynamics.
Introduced in the British gravitational system of units.
Pound
The pound (lb) is a unit of mass equal to exactly 0.45359237 kilogram.
From Latin 'libra pondo' (a pound by weight); the symbol lb comes from 'libra'.
The primary weight unit in the United States and informally in the UK.
The international avoirdupois pound was fixed in the 1959 yard-and-pound agreement.
Slug to Pound conversion formula
The relationship between slugs and pounds:
To convert slugs to pounds, multiply the value in slugs by 32.1740485564. To reverse, multiply pounds by 0.0310809502.
How to use this converter
Type a value into the calculator. The result in pounds updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Pound to Slug converter for the reverse direction.
Step-by-step: convert slugs to pounds
- Write down the value in slugs (slug).
- Multiply that value by the factor 32.1740485564.
- The product is the equivalent value in pounds (lb).
- To reverse, multiply the pound value by 0.0310809502.
Worked examples
Example 1 — Convert 1 slug to lb:
1 × 32.1740485564 = 32.1740485564 lb
Example 2 — Convert 100 slug to lb:
100 × 32.1740485564 = 3217.4048556416 lb
Slug to Pound conversion table
Standard reference values for converting slugs to pounds:
| Slug [slug] | Pound [lb] |
|---|---|
| 0.01 | 0.3217404856 |
| 0.1 | 3.2174048556 |
| 1 | 32.1740485564 |
| 2 | 64.3480971128 |
| 3 | 96.5221456692 |
| 4 | 128.6961942257 |
| 5 | 160.8702427821 |
| 10 | 321.7404855642 |
| 20 | 643.4809711283 |
| 30 | 965.2214566925 |
| 40 | 1286.9619422567 |
| 50 | 1608.7024278208 |
| 100 | 3217.4048556416 |
| 500 | 16087.0242782082 |
| 1000 | 32174.0485564164 |
Frequently asked questions
How many pounds is 1 slug?
How do I convert slugs to pounds?
How do I convert pounds back to slugs?
How many pounds is 100 slugs?
Popular weight unit conversions
Convert Slug to other weight units
Show all Slug conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Force / Engineering (4 units)
Sources & references
Conversion factor (1 slug = 32.1740485564 lb) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.