lbs to kg Converter (Pounds to Kilograms)
Convert pounds to kilograms instantly. 1 lb = 0.45359237 kg, the exact legal definition, so the conversion never drifts. Chart from 1 to 300 lb for body weight, baggage limits and barbell loads.
Referências do dia a dia
Tabela de conversão entre unidades
| Grupo | Unidade | Símbolo | Valor equivalente |
|---|---|---|---|
| Métrico (SI) | Micrograma | µg | 6,8039E10 |
| Métrico (SI) | Miligrama | mg | 6,8039E7 |
| Métrico (SI) | Grama | g | 68.038,8555 |
| Métrico (SI) | Quilograma | kg | 68,0389 |
| Métrico (SI) | Tonelada métrica | t | 0,068 |
| Imperial e americano | Onça | oz | 2.400 |
| Imperial e americano | Libra | lb | 150 |
| Imperial e americano | Stone | st | 10,7143 |
| Imperial e americano | Tonelada curta (EUA) | US ton | 0,075 |
| Imperial e americano | Tonelada longa (Reino Unido) | UK ton | 0,067 |
| Metais preciosos e gemas | Onça troy | oz t | 2.187,5 |
| Metais preciosos e gemas | Quilate | ct | 340.194,2775 |
| Metais preciosos e gemas | Grão | gr | 1.050.000 |
Explicação matemática passo a passo
- 1 lb equivale a 0,45359237 kg, então multiplique: 150 × 0,45359237 = 68,038856 kg.
- Fator direto: 1 lb = 0,45359237 kg.
Fatores de conversão essenciais
Libra: Libra avoirdupois internacional (exatamente 0,45359237 kg)
lb to kg formula
Resposta direta: 1 lb = 0,45359237 kg, so multiply by 0,45359237: kg = lb × 0,45359237. Going back: lb = kg × 2,2046226.
How to convert libras to quilogramas
The international avoirdupois pound is defined as exactly 0.45359237 kilograms (1959 International Yard and Pound Agreement). Multiplying by that number gives an exact result; rounding only happens when the answer is displayed.
1. lb → kg
Multiply the number of libras by the conversion factor:
Example: 150 lb × 0,45359237 = 68,04 kg.
2. kg → lb
To go back, divide by the same factor, or multiply by its reciprocal, 2,2046226:
Example: 68,04 kg ÷ 0,45359237 = 150 lb.
Mental math: halve it and take off 10%
Halve the pounds, then subtract a tenth of that. The estimate lands within 1% of the exact answer:
150 lb: 150 ÷ 2 = 75, minus 7.5 = 67.5 kg (exact: 68.04 kg).
1 lb in other massa units
| Unit | 1 lb equals | Typical use |
|---|---|---|
| Micrograma | 453.592.370 µg | Vitaminas e micronutrientes |
| Miligrama | 453.592,37 mg | Doses de remédios e suplementos |
| Grama | 453,59237 g | Culinária, correio e rótulos nutricionais |
| Quilograma | 0,45359237 kg | Unidade básica de massa do SI — peso corporal e compras |
| Tonelada métrica | 0,00045359237 t | Veículos, frete e carga (1.000 kg) |
| Onça | 16 oz | Onça avoirdupois — 1/16 de libra |
| Stone | 0,071428571 st | Unidade de peso corporal no Reino Unido e na Irlanda (14 lb) |
| Tonelada curta (EUA) | 0,0005 US ton | Tonelada americana — 2.000 lb |
| Tonelada longa (Reino Unido) | 0,00044642857 UK ton | Tonelada imperial — 2.240 lb |
| Onça troy | 14,583333 oz t | Cotação de ouro, prata e platina (31,1035 g) |
| Quilate | 2.267,9619 ct | Pedras preciosas e diamantes (exatamente 200 mg) |
| Grão | 7.000 gr | Munição, flechas e farmácia (1/7000 lb) |
lb to kg chart
| lb | kg |
|---|---|
| 1 | 0,45 |
| 2 | 0,91 |
| 2,2 | 1 |
| 3 | 1,36 |
| 4 | 1,81 |
| 5 | 2,27 |
| 6 | 2,72 |
| 7 | 3,18 |
| 8 | 3,63 |
| 10 | 4,54 |
| 12 | 5,44 |
| 15 | 6,8 |
| 20 | 9,07 |
| 25 | 11,34 |
| 30 | 13,61 |
| 35 | 15,88 |
| 40 | 18,14 |
| 45 | 20,41 |
| 50 | 22,68 |
| 60 | 27,22 |
| 70 | 31,75 |
| 80 | 36,29 |
| 100 | 45,36 |
| 120 | 54,43 |
| 130 | 58,97 |
| 140 | 63,5 |
| 150 | 68,04 |
| 160 | 72,57 |
| 170 | 77,11 |
| 180 | 81,65 |
| 190 | 86,18 |
| 200 | 90,72 |
| 220 | 99,79 |
| 250 | 113,4 |
| 300 | 136,08 |
kg to lb chart
| kg | lb |
|---|---|
| 0,5 | 1,1 |
| 1 | 2,2 |
| 1,5 | 3,31 |
| 2 | 4,41 |
| 2,5 | 5,51 |
| 3 | 6,61 |
| 3,5 | 7,72 |
| 4 | 8,82 |
| 4,5 | 9,92 |
| 5 | 11,02 |
| 6 | 13,23 |
| 7 | 15,43 |
| 8 | 17,64 |
| 9 | 19,84 |
| 10 | 22,05 |
| 15 | 33,07 |
| 20 | 44,09 |
| 25 | 55,12 |
| 30 | 66,14 |
| 40 | 88,18 |
| 50 | 110,23 |
| 55 | 121,25 |
| 60 | 132,28 |
| 65 | 143,3 |
| 70 | 154,32 |
| 75 | 165,35 |
| 80 | 176,37 |
| 85 | 187,39 |
| 90 | 198,42 |
| 95 | 209,44 |
| 100 | 220,46 |
| 110 | 242,51 |
| 120 | 264,55 |
| 150 | 330,69 |
Perguntas frequentes
What is 150 lb in kg?
150 lb is 68,04 kg (150 × 0,45359237).
What is 200 lb in kg?
200 lb is 90,72 kg (200 × 0,45359237).
How many kilograms are in a pound?
One pound is exactly 0.45359237 kg, or about 0.454 kg (454 grams).
Is lb the same as lbs?
Yes. lb is the official symbol for the pound (from the Latin libra); lbs is a common informal plural. Both mean the same 0.45359237 kg unit.