Stones and Pounds to Kilograms Conversion Table

Q: How do I convert stones to kg?

Multiply stones by 6.35029. Example: 12 st &times; 6.35029 = 76.2 kg.

UK body weight reference — 1 to 30 stones

Body Weight UK Format

st → kg Quick Converter

Need more features? Try our complete stone to kilogram converter.

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What is Stone (st)?

The stone (st) is a traditional British unit of mass, primarily used for expressing human body weight in the UK and Ireland.Although not part of the SI system, it remains culturally relevant and widely understood in health-related contexts.

What is Kilogram (kg)?

The kilogram (kg) is the SI base unit of mass. Since 2019, it is defined by fixing the numerical value of the Planck constant, ensuring stability independent of physical artifacts.The kilogram is universally used in science, engineering, medicine, commerce, and daily life, forming the reference point for all metric and many non-metric mass units.

How to Convert Stone to Kilogram

kg = stones × 6.35029. 1 stone = 14 pounds = 6.35029318 kg exactly.

Example

Convert 4 st to kg:

4 st = 25.4012 kg

Stones and Pounds to Kilograms Conversion Table

Values from 1 to 30 st.

st to kg (1 – 10 st)
st	kg	Pounds	Grams
1	6.35029	14	6,350
2	12.7006	28	12,701
3	19.0509	42	19,051
4	25.4012	56	25,401
5	31.7515	70	31,751
6	38.1018	84	38,102
7	44.4521	98	44,452
8	50.8023	112	50,802
9	57.1526	126	57,153
10	63.5029	140	63,503

st to kg (11 – 20 st)
st	kg	Pounds	Grams
11	69.8532	154	69,853
12	76.2035	168	76,204
13	82.5538	182	82,554
14	88.9041	196	88,904
15	95.2544	210	95,254
16	101.605	224	101,605
17	107.955	238	107,955
18	114.305	252	114,305
19	120.656	266	120,656
20	127.006	280	127,006

st to kg (21 – 30 st)
st	kg	Pounds	Grams
21	133.356	294	133,356
22	139.706	308	139,706
23	146.057	322	146,057
24	152.407	336	152,407
25	158.757	350	158,757
26	165.108	364	165,108
27	171.458	378	171,458
28	177.808	392	177,808
29	184.159	406	184,159
30	190.509	420	190,509

Practical Examples: st to kg Conversions

← Use our interactive stone to kilogram converter

Frequently Asked Questions

How do I convert stones to kg?

Multiply stones by 6.35029. Example: 12 st × 6.35029 = 76.2 kg.

How many kg is 10 stone?

10 stone = 140 lb = 63.503 kg exactly.

How many pounds in a stone?

Exactly 14 pounds in 1 stone.

Related Conversion Tables

kg to Stones & Pounds

20-200 kg

kg to Lbs (Body Weight)

40-120 kg

Pounds to kg

1-200 lb

Related Weight Tools

Weight Converter — all weight units
Kg to Stones & Pounds
Kg to Lbs & Oz
Kilograms to Pounds
Stone to Kg — convert stones to kilograms

Conversion factors verified against NIST (National Institute of Standards and Technology), BIPM (International Bureau of Weights and Measures) 1 lb = 0.45359237 kg by international agreement (1959). Last reviewed: March 2026

By Adilson Fernandes

Reviewed by Tiago Fernandes

From		st
To		kg