# Konverter berat (kg, lb, stone, oz)

> Konversikan kg ke pon, pon atau stone ke kg dan ounce ke gram memakai definisi pon tepat tahun 1959, serta ton, karat, troy ounce dan tola.

Versi interaktif: https://www.calcopenly.com/id/conversion/weight-converter
Topik: Konverter satuan

Every mass unit is a fixed number of kilograms. The pound has been exactly 0.45359237 kg since the 1959 international yard and pound agreement, so pounds, ounces (1/16 lb), stones (14 lb) and short and long tons all convert exactly. The kilogram itself has been defined since 2019 by a fixed value of the Planck constant.

The default converts 1 kg to 2.20462262185 lb, a repeating decimal shown to 12 significant figures. Body weight is the usual reason to convert: 70 kg is 154.32 lb, or just over 11 stone.

Weight here means mass, the sense in which scales and shops use the word. Precious metals use the troy ounce (31.1034768 g) rather than the ordinary ounce (28.349523125 g), and gems are weighed in metric carats of exactly 200 mg.

## Masukan

- **Nilai**: Angka dalam satuan asal, atau angka yang disertai satuannya sendiri
- **Dari** (pilihan: kilogram (kg), gram (g), milligram (mg), microgram (µg), tonne (t), quintal (q), pound (lb), ounce (oz), stone (st), short ton (ton (US)), long ton (ton (UK)), carat (ct), grain (gr), troy ounce (oz t), tola)
- **Ke** (pilihan: kilogram (kg), gram (g), milligram (mg), microgram (µg), tonne (t), quintal (q), pound (lb), ounce (oz), stone (st), short ton (ton (US)), long ton (ton (UK)), carat (ct), grain (gr), troy ounce (oz t), tola)

## Hasil

- Nilai hasil konversi — hasil utama
- Konversi
- Faktor konversi
- Ketepatan

## Rumus

$$
\begin{gathered} x_{\text{to}} = x_{\text{from}} \times \dfrac{f_{\text{from}}}{f_{\text{to}}} \\ f = \text{one unit expressed in } \text{kg} \end{gathered}
$$

## Contoh penyelesaian

### 1 kg to pounds

- Nilai: 1 kg
- Dari: kilogram (kg)
- Ke: pound (lb)
- **Nilai hasil konversi: 2.2046226218 lb**
- **Ketepatan: Definisi eksak, desimal berulang**
- Sumber pemeriksaan: 1 lb = 0.45359237 kg exactly (1959 agreement); 1/0.45359237 = 100000000/45359237 (Python 3.8 fractions from the legal definitions)

### 1 stone in pounds

- Nilai: 1 st
- Dari: stone (st)
- Ke: pound (lb)
- **Nilai hasil konversi: 14 lb**
- Sumber pemeriksaan: NIST HB 44 App. C: 1 stone = 14 lb

### 1 ounce in grams

- Nilai: 1 oz
- Dari: ounce (oz)
- Ke: gram (g)
- **Nilai hasil konversi: 28.349523125 g**
- **Ketepatan: Eksak**
- Sumber pemeriksaan: 1/16 × 453.59237 g = 28.349523125 g (NIST HB 44 App. C)

### 1 tola in grams

- Nilai: 1 tola
- Dari: tola
- Ke: gram (g)
- **Nilai hasil konversi: 11.6638038 g**
- Sumber pemeriksaan: 1 tola = 180 grains; 1 grain = 64.79891 mg exactly (NIST HB 44 App. C): 180 × 64.79891 mg

## Pertanyaan

### How many pounds are in a kilogram?

2.20462262 lb. The pound is defined as exactly 0.45359237 kg, so 1 kg = 1 ÷ 0.45359237 = 2.2046226218… lb, a decimal that never ends. The shortcut “multiply by 2.2” is 0.2% low: 100 kg is 220.46 lb, not 220.

### How many kilograms are in a stone?

Exactly 6.35029318 kg. A stone is 14 lb, and 14 × 0.45359237 kg gives that figure. Stones are still used for body weight in the UK and Ireland; 11 st 7 lb is 161 lb, which is 73.03 kg.

### What is the difference between a troy ounce and an ounce?

A troy ounce is 31.1034768 g and an ordinary (avoirdupois) ounce is 28.349523125 g, so the troy ounce is 9.7% heavier. Gold, silver and platinum prices are quoted per troy ounce. A troy pound has 12 troy ounces, while the ordinary pound has 16 ounces.

### Is a ton the same as a tonne?

No. A tonne (metric ton) is 1,000 kg. A US short ton is 2,000 lb, 907.18474 kg, and a UK long ton is 2,240 lb, 1,016.0469088 kg. The long ton is 12% heavier than the short ton, so shipping and freight documents should state which one they use.

### How many grams is a tola?

11.6638038 g. A tola is 180 grains, and a grain is exactly 64.79891 mg (NIST Handbook 44), so 180 × 64.79891 mg = 11.6638038 g. Gold is still traded by the tola in South Asia and the Gulf, where a 10-tola bar weighs 116.64 g.

### Seberapa akurat “Konverter berat (kg, lb, stone, oz)”?

Akurasi bergantung pada masukan dan asumsi metode. Aritmetika desimal memakai 50 digit signifikan, tetapi perkiraan, metode numerik dan data sumber bisa kurang presisi; pembulatan yang ditampilkan tidak menghilangkan batasan itu. Contoh penyelesaian yang diperiksa dengan sumber independen: 4. Misalnya, “1 kg to pounds” diperiksa dengan 1 lb = 0.45359237 kg exactly (1959 agreement); 1/0.45359237 = 100000000/45359237 (Python 3.8 fractions from the legal definitions).

### Dari mana metode ini berasal?

NIST SP 811 (2008), Guide for the Use of the SI, Appendix B — conversion factors; NIST Handbook 44, Appendix C — General tables of units of measurement.

## Sumber

- [NIST SP 811 (2008), Guide for the Use of the SI, Appendix B — conversion factors](https://www.nist.gov/pml/special-publication-811)
- [NIST Handbook 44, Appendix C — General tables of units of measurement](https://www.nist.gov/pml/owm/nist-handbook-44-current-edition)