Hundredweight (US) to Kilogram Converter
Weight · unit-converter
Convert Hundredweight (US) to Kilogram with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use gram-based factors (international avoirdupois pound and metric definitions). The full Weight Converter also includes carat, grain, and US/UK hundredweight.
Calculator
From: Hundredweight (US) (cwt_us)
To: Kilogram (kg)
About Hundredweight (US)
The US hundredweight (short hundredweight) is 100 lb, exactly 45.359237 kg from the international pound definition.
About Kilogram
The kilogram is the SI base unit of mass (defined via fundamental constants). Everyday metric weights and science use kilograms and grams.
How to convert hundredweight (us) to kilograms
1 hundredweight (us) is equal to 45.359237 kilogram:
1 cwt_us = (45359.237 g ÷ 1000 g) kg = 45.359237 kg
Each hundredweight (us) is defined as 45359.237 g and each kilogram as 1000 g, so one cwt_us equals 45359.237 ÷ 1000 kg = 45.359237 kg.
Let w(cwt_us) be the numeric value of the same mass measured in Hundredweight (US) (cwt_us), and w(kg) the value in Kilogram (kg). Then:
w(kg) = w(cwt_us) × (45359.237 / 1000)
Equivalently, divide by how many cwt_us fit into one kg (grams per kg divided by grams per cwt_us):
w(kg) = w(cwt_us) ÷ 0.02204622621849
Or: kilogram = hundredweight (us) ÷ 0.02204622621849
Examples
Example #1: Convert 20 cwt_us to kilogram
20 cwt_us = 20 cwt_us × (45359.237/1000) kg = 907.18474 kg
20 cwt_us = 20 cwt_us ÷ 0.02204622621849 = 907.18474 kg
Example #2: Convert 50 cwt_us to kilogram
50 cwt_us = 50 cwt_us × (45359.237/1000) kg = 2267.96185 kg
50 cwt_us = 50 cwt_us ÷ 0.02204622621849 = 2267.96185 kg
Summary
To convert Hundredweight (US) to Kilogram, multiply the value in cwt_us by the ratio of grams per cwt_us divided by grams per kg. Equivalently: value_kg = value_cwt_us × (45359.237 / 1000). Numerically, 1 cwt_us equals 45.359237 kg.
Relationship context
You are converting between US customary (short ton) (Hundredweight (US)) and metric (SI) (Kilograms). Metric mass is decimal from the gram; US and imperial masses use pounds and ounces with fixed definitions relative to the kilogram. The numeric factor used here is 4.535924e+1.
Conversion tables
| Hundredweight (US) (cwt_us) | Kilogram (kg) |
|---|---|
| 0.1 | 4.5359237 |
| 1 | 45.359237 |
| 2 | 90.718474 |
| 3 | 136.077711 |
| 4 | 181.436948 |
| 5 | 226.796185 |
| 6 | 272.155422 |
| 7 | 317.514659 |
| 8 | 362.873896 |
| 9 | 408.233133 |
| Hundredweight (US) (cwt_us) | Kilogram (kg) |
|---|---|
| 10 | 453.59237 |
| 20 | 907.18474 |
| 30 | 1,360.77711 |
| 40 | 1,814.36948 |
| 50 | 2,267.96185 |
| 60 | 2,721.55422 |
| 70 | 3,175.14659 |
| 80 | 3,628.73896 |
| 90 | 4,082.33133 |
| 100 | 4,535.9237 |