Convert Pounds, Kilograms, Stones Calculator Conversion Chart

Weight Converter: Stones, Pounds & Kilograms

Author: Ian C. Langtree - Writer/Editor for Disabled World (DW)Published: 2014/01/04 - Updated: 2025/11/30Publication Type: Conversion, CalculationCategory Topic: Medical Calculators and Charts - Related Papers & Publications

Page Content: Synopsis - Introduction - Main - Insights, Updates

Synopsis: This page provides a user-friendly weight calculator and printable chart for converting measurements from stones to pounds, kilograms, and ounces. It is particularly useful for individuals in regions where the stone is still a common unit of measure, like the United Kingdom (UK) and Ireland, and sometimes in parts of the Commonwealth, like Australia and New Zealand, helping to quickly and accurately convert weights for health, fitness, or daily life purposes. The tool enhances understanding by offering conversions in both directions, thus bridging the gap between imperial and metric systems, which can be especially helpful in medical contexts, international communication, or when dealing with diverse measurement standards - Disabled World (DW).

Introduction

What is a Stone in Weight Measurement?

The stone (st) is a unit of measure equal to 14 pounds (lb) or 6.3503 kilograms (kg). The plural of stone is also stone. The stone measurement remains widely used in Britain, Australia, and Ireland for measuring human body weight. In the U.K., Australia, New Zealand, and Ireland, people may be said to weigh, e.g., "11 stone 4" (11 stones and 4 pounds), rather than "72 kilograms", or "158 pounds", as in the United States (US). Many scales today provide a "change weight display" setting that you can select to display either kilograms, pounds, or stone/pounds.

Quick Stone Conversions:

• 1 stone = 14 pounds
• 1 stone = 6.35029318 kilograms
• To convert kilograms to stones, divide by 6.35029318
• To convert stones to kilograms, multiply by 6.35029318

Main Content

Chart to Convert Stones to Kilograms and Pounds

Below the chart is an easy-to-read weight conversion calculator for Stone, Pounds, and Kilograms, and a stone conversion graph.

Stones, Pounds, Kilograms Conversion Table

Kilograms	Pounds	st/Pounds
45.0kg	99lb	7st - 1lb
45.5kg	100lb	7st - 2lb
45.9kg	101lb	7st - 3lb
46.4kg	102lb	7st - 4lb
46.8kg	103lb	7st - 5lb
47.3kg	104lb	7st - 6lb
47.7kg	105lb	7st - 7lb
48.2kg	106lb	7st - 8lb
48.6kg	107lb	7st - 9lb
49.1kg	108lb	7st - 10lb
49.5kg	109lb	7st - 11lb
50.0kg	110lb	7st - 12lb
50.5kg	111lb	7st - 13lb
50.9kg	112lb	8st - 0lb
51.4kg	113lb	8st - 1lb
51.8kg	114lb	8st - 2lb
52.3kg	115lb	8st - 3lb
52.7kg	116lb	8st - 4lb
53.2kg	117lb	8st - 5lb
53.6kg	118lb	8st - 6lb
54.1kg	119lb	8st - 7lb
54.5kg	120lb	8st - 8lb
55.0kg	121lb	8st - 9lb
55.5kg	122lb	8st - 10lb
55.9kg	123lb	8st - 11lb
56.4kg	124lb	8st - 12lb
56.8kg	125lb	8st - 13lb
57.3kg	126lb	9st - 0lb
57.7kg	127lb	9st - 1lb
58.2kg	128lb	9st - 2lb
58.6kg	129lb	9st - 3lb
59.1kg	130lb	9st - 4lb
59.5kg	131lb	9st - 5lb
60.0kg	132lb	9st - 6lb
60.5kg	133lb	9st - 7lb
60.9kg	134lb	9st - 8lb
61.4kg	135lb	9st - 9lb
61.8kg	136lb	9st - 10lb
62.3kg	137lb	9st - 11lb
62.7kg	138lb	9st - 12lb
63.2kg	139lb	9st - 13lb
63.6kg	140lb	10st - 0lb
64.1kg	141lb	10st - 1lb
64.5kg	142lb	10st - 2lb
65.0kg	143lb	10st - 3lb
65.5kg	144lb	10st - 4lb
65.9kg	145lb	10st - 5lb
66.4kg	146lb	10st - 6lb
66.8kg	147lb	10st - 7lb
67.3kg	148lb	10st - 8lb
67.7kg	149lb	10st - 9lb
68.2kg	150lb	10st - 10lb
68.6kg	151lb	10st - 11lb
69.1kg	152lb	10st - 12lb
69.5kg	153lb	10st - 13lb
70.0kg	154lb	11st - 0lb
70.5kg	155lb	11st - 1lb
70.9kg	156lb	11st - 2lb
71.4kg	157lb	11st - 3lb
71.8kg	158lb	11st - 4lb
72.3kg	159lb	11st - 5lb
72.7kg	160lb	11st - 6lb
73.2kg	161lb	11st - 7lb
73.6kg	162lb	11st - 8lb
74.1kg	163lb	11st - 9lb
74.5kg	164lb	11st - 10lb
75.0kg	165lb	11st - 11lb
75.5kg	166lb	11st - 12lb
75.9kg	167lb	11st - 13lb
76.3kg	168lb	12st - 0lb
76.8kg	169lb	12st - 1lb
77.3kg	170lb	12st - 2lb
77.7kg	171lb	12st - 3lb
78.2kg	172lb	12st - 4lb
78.6kg	173lb	12st - 5lb
79.1kg	174lb	12st - 6lb
79.5kg	175lb	12st - 7lb
80.0kg	176lb	12st - 8lb
80.5kg	177lb	12st - 9lb
80.9kg	178lb	12st - 10lb
81.4kg	179lb	12st - 11lb
81.8kg	180lb	12st - 12lb
82.3kg	181lb	12st - 13lb
82.7kg	182lb	13st - 0lb
83.2kg	183lb	13st - 1lb
83.6kg	184lb	13st - 2lb
84.1kg	185lb	13st - 3lb
84.5kg	186lb	13st - 4lb
85.0kg	187lb	13st - 5lb
85.5kg	188lb	13st - 6lb
85.9kg	189lb	13st - 7lb
86.4kg	190lb	13st - 8lb
86.8kg	191lb	13st - 9lb
87.3kg	192lb	13st - 10lb
87.7kg	193lb	13st - 11lb
88.2kg	194lb	13st - 12lb
88.6kg	195lb	13st - 13lb
89.1kg	196lb	14st - 0lb
89.5kg	197lb	14st - 1lb
90.0kg	198lb	14st - 2lb
90.5kg	199lb	14st - 3lb
90.9kg	200lb	14st - 4lb
91.4kg	201lb	14st - 5lb
91.8kg	202lb	14st - 6lb
92.3kg	203lb	14st - 7lb
92.7kg	204lb	14st - 8lb
93.2kg	205lb	14st - 9lb
93.6kg	206lb	14st - 10lb
94.1kg	207lb	14st - 11lb
94.5kg	208lb	14st - 12lb
95.0kg	209lb	14st - 13lb
95.5kg	210lb	15st - 0lb
95.9kg	211lb	15st - 1lb
96.4kg	212lb	15st - 2lb
96.8kg	213lb	15st - 3lb
97.3kg	214lb	15st - 4lb
97.7kg	215lb	15st - 5lb
98.2kg	216lb	15st - 6lb
98.6kg	217lb	15st - 7lb
99.1kg	218lb	15st - 8lb
99.5kg	219lb	15st - 9lb
100kg	220lb	15st - 10lb
100.5kg	221lb	15st - 11lb
100.9kg	222lb	15st - 12lb
101.4kg	223lb	15st - 13lb
101.8kg	224lb	16st - 0lb
102.3kg	225lb	16st - 1lb
102.7kg	226lb	16st - 2lb
103.2kg	227lb	16st - 3lb
103.6kg	228lb	16st - 4lb
104.1kg	229lb	16st - 5lb
104.5kg	230lb	16st - 6lb
105.0kg	231lb	16st - 7lb
105.5kg	232lb	16st - 8lb
105.9kg	233lb	16st - 9lb
106.4kg	234lb	16st - 10lb
106.8kg	235lb	16st - 11lb
107.3kg	236lb	16st - 12lb
107.7kg	237lb	16st - 13lb
108.2kg	238lb	17st - 0lb
108.6kg	239lb	17st - 1lb
109.1kg	240lb	17st - 2lb
109.5kg	241lb	17st - 3lb
110.0kg	242lb	17st - 4lb
110.5kg	243lb	17st - 5lb
110.9kg	244lb	17st - 6lb
111.4kg	245lb	17st - 7lb
111.8kg	246lb	17st - 8lb
112.3kg	247lb	17st - 9lb
112.7kg	248lb	17st - 10lb
113.2kg	249lb	17st - 11lb
113.6kg	250lb	17st - 12lb
114.1kg	251lb	17st - 13lb
114.5kg	252lb	18st - 0lb
115.0kg	253lb	18st - 1lb
115.5kg	254lb	18st - 2lb
115.9kg	255lb	18st - 3lb
116.4kg	256lb	18st - 4lb
116.8kg	257lb	18st - 5lb
117.3kg	258lb	18st - 6lb
117.7kg	259lb	18st - 7lb
118.1kg	260lb	18st - 8lb
118.6kg	261lb	18st - 9lb
119.1kg	262lb	18st - 10lb
119.5kg	263lb	18st - 11lb
120.0kg	264lb	18st - 12lb
120.5kg	265lb	18st - 13lb
120.9kg	266lb	19st - 0lb
121.4kg	267lb	19st - 1lb
121.8kg	268lb	19st - 2lb
122.3kg	269lb	19st - 3lb
122.7kg	270lb	19st - 4lb
123.2kg	271lb	19st - 5lb
123.6kg	272lb	19st - 6lb
124.1kg	273lb	19st - 7lb
124.5kg	274lb	19st - 8lb
125.0kg	275lb	19st - 9lb
125.5kg	276lb	19st - 10lb
125.9kg	277lb	19st - 11lb
126.4kg	278lb	19st - 12lb
126.8kg	279lb	19st - 13lb
127.3kg	280lb	20st - 0lb
127.7kg	281lb	20st - 1lb
128.2kg	282lb	20st - 2lb
128.6kg	283lb	20st - 3lb
129.1kg	284lb	20st - 4lb
129.5kg	285lb	20st - 5lb
130.0kg	286lb	20st - 6lb
130.5kg	287lb	20st - 7lb
130.9kg	288lb	20st - 8lb
131.4kg	289lb	20st - 9lb
131.8kg	290lb	20st - 10lb
132.3kg	291lb	20st - 11lb
132.7kg	292lb	20st - 12lb
133.2kg	293lb	20st - 13lb
133.6kg	294lb	21st - 0lb
134.1kg	295lb	21st - 1lb
134.5kg	296lb	21st - 2lb
135.0kg	297lb	21st - 3lb
135.5kg	298lb	21st - 4lb
135.9kg	299lb	21st - 5lb
136.4kg	300lb	21st - 6lb
136.8kg	301lb	21st - 7lb
137.3kg	302lb	21st - 8lb
137.7kg	303lb	21st - 9lb
138.2kg	304lb	21st - 10lb
138.6kg	305lb	21st - 11lb
139.1kg	306lb	21st - 12lb
139.5kg	307lb	21st - 13lb
140.0kg	308lb	22st - 0lb

Calculator to Convert Stones to Pounds and/or Kilograms

Enter the value you know in the appropriate box, and the other figures will be instantly calculated for you.

Stones to Pounds and Kilograms Calculator

Pounds

Stones

Kilograms

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Stones to Pounds Conversion Graph

Avoirdupois

An avoirdupois ounce is a unit of weight equal to 28.35 grams and is defined as 1/16 of an avoirdupois pound (there are 16 ounces in a pound). It is the standard ounce used for everyday weighing and is distinct from the troy ounce, which is used for precious metals and weighs more (31.10) grams.

• 1 avoirdupois ounce = 28.35 grams
• 1 avoirdupois ounce = 437.5 grains
• 16 avoirdupois ounces = 1 avoirdupois pound

Countries That Use Imperial and Metric Systems

In Australia, New Zealand, and increasingly so in Canada, the metric system (kilograms) has replaced the measurement of stone and pounds since the 1960's-70's.

The stone unit of measurement is still used in Great Britain, Ireland, and by some people in Australia for measuring human body weight, as it will probably take a generation or more for populations to fully convert to the metric system (i.e., kilograms instead of stones or pounds). People in those countries who still use the stone unit of measurement are said to weigh, for example, 11 stone 4 (11 stone and 4 pounds), which is approximately 72 kilograms or 158 pounds.

The United States still uses the older Imperial system, e.g., pounds as body weight measurement; however, U.S. law has indicated the metric system to be preferred, but not the only one allowed. Compliance is totally voluntary - some people and industries convert fully, some not at all, and most are a mix - resulting in ongoing confusion both domestically and internationally from not using the metric system consistently.

Insights, Analysis, and Developments

Editorial Note: Accurate weight conversion tools like this one play an essential role in fostering inclusivity and accessibility in healthcare and daily life. By simplifying the process of translating between measurement systems, they ensure that individuals - regardless of their familiarity with specific units - can confidently manage their health and communicate effectively across international contexts. In a world where digital tools are increasingly complex, this straightforward conversion chart and calculator stand out for their simplicity and inclusiveness. Whether used in personal health tracking, travel, or caregiving contexts, it offers a small but meaningful contribution to usability and accessibility in everyday calculations - something often overlooked in overly technical resources - Disabled World (DW).

Author Credentials: Ian is the founder and Editor-in-Chief of Disabled World, a leading resource for news and information on disability issues. With a global perspective shaped by years of travel and lived experience, Ian is a committed proponent of the Social Model of Disability-a transformative framework developed by disabled activists in the 1970s that emphasizes dismantling societal barriers rather than focusing solely on individual impairments. His work reflects a deep commitment to disability rights, accessibility, and social inclusion. To learn more about Ian's background, expertise, and accomplishments, visit his full biography.