Kilograms to Stone Converter (kg to st)

How to convert kilograms to stone

To convert kilograms to stone, multiply the number of kilograms by 0.15747 (or divide by 6.35).

Example: 80 kg = 12.598 st.

Useful for reading British fitness and weight-loss plans.

Kilograms to Stone conversion chart

kg	st
0.25 kg	0.03937 st
0.5 kg	0.07874 st
0.75 kg	0.1181 st
1 kg	0.15747 st
1.5 kg	0.23621 st
2 kg	0.31495 st
2.5 kg	0.39368 st
3 kg	0.47242 st
3.5 kg	0.55116 st
4 kg	0.62989 st
4.5 kg	0.70863 st
5 kg	0.78737 st
6 kg	0.94484 st
7 kg	1.102 st
8 kg	1.26 st
9 kg	1.417 st
10 kg	1.575 st
11 kg	1.732 st
12 kg	1.89 st
13 kg	2.047 st
14 kg	2.205 st
15 kg	2.362 st
16 kg	2.52 st
18 kg	2.835 st
20 kg	3.149 st
24 kg	3.779 st
25 kg	3.937 st
30 kg	4.724 st
32 kg	5.039 st
35 kg	5.512 st
40 kg	6.299 st
45 kg	7.086 st
50 kg	7.874 st
55 kg	8.661 st
60 kg	9.448 st
64 kg	10.078 st
65 kg	10.236 st
70 kg	11.023 st
75 kg	11.81 st
80 kg	12.598 st
85 kg	13.385 st
90 kg	14.173 st
100 kg	15.747 st
110 kg	17.322 st
120 kg	18.897 st
125 kg	19.684 st
128 kg	20.157 st
150 kg	23.621 st
175 kg	27.558 st
180 kg	28.345 st
200 kg	31.495 st
220 kg	34.644 st
250 kg	39.368 st
300 kg	47.242 st
400 kg	62.989 st
500 kg	78.737 st
750 kg	118.1 st
1,000 kg	157.47 st

Metric vs. U.S. customary units

The United States uses U.S. customary units — inches, feet, miles, pounds, gallons and degrees Fahrenheit — for most everyday purposes. Canada officially adopted the metric system in the 1970s, so road signs, weather forecasts, gas pumps and food labels use kilometers, degrees Celsius, liters and grams. In practice many Canadians still use feet and inches for height, pounds for body weight and square feet for homes, which is why conversions come up constantly on both sides of the border.

Exact conversion factors

Since 1959 the inch, foot, yard, mile and pound have been defined in metric terms, so these conversions are exact, not approximations:

1 inch = 2.54 cm exactly, so 1 foot = 30.48 cm and 1 mile = 1.609344 km.
1 pound = 0.45359237 kg exactly; 1 ounce = 28.349523125 g.
1 U.S. gallon = 3.785411784 liters. The imperial gallon used in the U.K. is larger: 4.54609 liters.
1 acre = 4,046.8564224 m², and 1 hectare = 10,000 m² (about 2.471 acres).

Temperature is different because the scales have different zero points: °F = °C × 9/5 + 32 and °C = (°F − 32) × 5/9. Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F) at sea level, and −40 is the same in both scales.

Quick mental shortcuts

Kilometers to miles: multiply by 0.6 (100 km ≈ 60 miles; the exact figure is 62.1).
Kilograms to pounds: double it and add 10% (70 kg → 140 + 14 = 154 lb).
Celsius to Fahrenheit: double it and add 30 for a rough estimate (20 °C → 70 °F; the exact answer is 68 °F).
Liters to U.S. gallons: divide by 4 for a quick estimate (40 L ≈ 10 gallons; exactly 10.57).

Cooking and recipe conversions

U.S. recipes measure by volume — cups, tablespoons and teaspoons — while Canadian and most international recipes use milliliters and grams. A U.S. cup is about 237 mL, but Canadian "metric" measuring cups hold 250 mL, so the difference adds up in baking. For flour, sugar and butter, weighing in grams is more accurate than cups because the density of each ingredient differs.

Popular conversions

Pick a conversion below for a dedicated page with the formula, worked examples and a complete conversion chart.

Tips for accurate conversions

Keep full precision until the final step and round only the answer — rounding intermediate numbers can add noticeable errors, especially in recipes, construction and engineering. Always check which gallon, ounce or ton a source means: U.S. and imperial units share names but not sizes, and a "fluid ounce" measures volume while an "ounce" of weight measures mass. For temperatures, remember that a temperature difference converts differently from a temperature reading: a change of 10 °C equals a change of 18 °F, without adding 32.

Popular unit conversions

Frequently asked questions

How many centimeters are in an inch?

Exactly 2.54 centimeters. To convert inches to centimeters, multiply by 2.54; to convert centimeters to inches, divide by 2.54.

How do I convert kg to pounds?

Multiply kilograms by 2.20462. For example, 70 kg × 2.20462 = 154.3 lb.

What is the formula for Celsius to Fahrenheit?

Multiply by 9/5 (1.8) and add 32. For example, 25 °C × 1.8 + 32 = 77 °F.

Is a U.S. gallon the same as a Canadian gallon?

No. Canada sells gas by the liter, but when gallons are mentioned in Canada they are sometimes imperial gallons (4.546 L), which are about 20% larger than U.S. gallons (3.785 L).

How many square feet are in a square meter?

About 10.764 square feet. A 1,000 sq ft home is roughly 92.9 m².

Sources & methodology

This calculator was last reviewed on November 2, 2026. Figures are based on the following official and primary sources:

NIST – Handbook 44, Appendix C: General Tables of Units of Measurement

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