11 Stone to KG: Convert 11 Stone and Pounds to Kilograms

11 stone is 69.85 kg. The exact figure is 69.853 kg, the same as 154 pounds. To convert 11 stone to kg, multiply 11 by 6.35029. For the full picture across every stone, see our stone to kg conversion chart.

The sections below explain how 11 stone to kg is worked out, list every pound up to 12 stone, and look at why this weight is so close to the 70 kg mark that doctors and scientists use as a standard.

How do you work out 11 stone in kg?

Multiply 11 by 6.35029, which is the number of kilograms in a stone. Eleven times 6.35029 is 69.85319, so the answer is 69.85 kg to two decimal places.

A second route goes through pounds:

1. 11 stone × 14 = 154 pounds
2. 154 pounds × 0.453592 = 69.85 kg

Choose the pounds route if your weight has extra pounds on top. For 11 stone 9, add 9 to 154 to get 163 pounds, then multiply by 0.453592. The result is 73.94 kg.

What is 11 stone and a few pounds in kg?

Each extra pound adds 0.45 kg. This table gives the kilogram figure for every pound from 11 stone 0 to 11 stone 13.

Stone and pounds	Kilograms	Pounds only
11 st 0 lb	69.85 kg	154 lb
11 st 1 lb	70.31 kg	155 lb
11 st 2 lb	70.76 kg	156 lb
11 st 3 lb	71.21 kg	157 lb
11 st 4 lb	71.67 kg	158 lb
11 st 5 lb	72.12 kg	159 lb
11 st 6 lb	72.57 kg	160 lb
11 st 7 lb	73.03 kg	161 lb
11 st 8 lb	73.48 kg	162 lb
11 st 9 lb	73.94 kg	163 lb
11 st 10 lb	74.39 kg	164 lb
11 st 11 lb	74.84 kg	165 lb
11 st 12 lb	75.30 kg	166 lb
11 st 13 lb	75.75 kg	167 lb

Eleven and a half stone is the same as 11 stone 7, which is 73.03 kg. Do not confuse it with 11 stone 5, which is 72.12 kg. Half a stone is 7 pounds.

Is 11 stone the same as 70 kg?

Almost. Eleven stone is 69.85 kg, which is only 150 grams short of 70 kg. Going the other way, 70 kg is 11 stone 0.3 pounds.

That gap is smaller than the weight of a mug of tea. For everyday purposes you can treat the two as equal. If a form asks for your weight in whole kilograms and you weigh 11 stone, write 70.

This makes 11 stone one of the easiest weights to remember in both systems. If you know that 11 stone is 70 kg, you can estimate other weights from it by adding or taking away 6.35 kg for each stone.

Why is 70 kg such a common reference weight?

Seventy kilograms has long been used in medicine and science as the weight of a “standard” adult. Textbooks use it to give example doses, fluid needs and energy needs.

You may see phrases such as “for a 70 kg adult” on medical information or in nutrition guides. In stone, that standard person weighs 11 stone. Knowing this helps you compare yourself with the example. If you weigh 13 stone, you are about 12.5 kg heavier than the reference adult. If you weigh 9 stone, you are about 13 kg lighter.

The standard is only a teaching aid. Real doses and advice are based on your own weight, age and health, so always follow what your doctor or pharmacist tells you.

Is 11 stone a healthy weight for your height?

For most adults, 11 stone is in the healthy range if you are between about 5 feet 6 and 6 feet 4 tall. Under 5 feet 6, it moves into the overweight range.

Body mass index is weight in kilograms divided by height in metres squared. This is how 69.85 kg works out at different heights:

Height	BMI at 11 stone	Range
150 cm (4 ft 11)	31.0	Obese
155 cm (5 ft 1)	29.1	Overweight
160 cm (5 ft 3)	27.3	Overweight
165 cm (5 ft 5)	25.7	Overweight
170 cm (5 ft 7)	24.2	Healthy
175 cm (5 ft 9)	22.8	Healthy
180 cm (5 ft 11)	21.6	Healthy
185 cm (6 ft 1)	20.4	Healthy
190 cm (6 ft 3)	19.3	Healthy

These ranges apply to adults. They are not used in the same way for children, teenagers or pregnant women, and lower limits apply to people from some ethnic backgrounds. BMI also cannot tell how much of your weight is muscle. Ask your GP if you want advice that fits your own body.

How does 11 stone compare with the average woman in England?

Eleven stone is a little under the average. National health survey figures put the average woman in England at around 72 kg, which is roughly 11 stone 5.

A woman who weighs 11 stone is therefore about 2 kg, or 5 pounds, lighter than the national figure. The average man weighs around 85 kg, so a man at 11 stone is about 15 kg below the male average.

The average is not a target. Average weights have gone up over the years, and the typical adult in England now has a BMI above the healthy range.

Where does 11 stone appear in sport?

Eleven stone is the upper limit for super welterweight boxers. The class stops at 154 pounds, which is 69.85 kg. You may also hear it called light middleweight.

Mixed martial arts has a similar mark. The lightweight limit is 155 pounds, one pound above 11 stone. In both sports, fighters are weighed in pounds, even in Britain, and the result is often reported in stone and pounds for home fans.

In the gym, lifting your own body weight at 11 stone means lifting 70 kg. On a standard 20 kg bar, that is one 25 kg plate on each side.

How many kg is it from 11 stone to common goal weights?

Each half stone is 3.18 kg. The table shows the distance from 11 stone to targets above and below it.

Goal weight	In kg	Change from 11 stone
9 st	57.15 kg	Lose 12.70 kg
9 st 7 lb	60.33 kg	Lose 9.53 kg
10 st	63.50 kg	Lose 6.35 kg
10 st 7 lb	66.68 kg	Lose 3.18 kg
11 st 7 lb	73.03 kg	Gain 3.18 kg
12 st	76.20 kg	Gain 6.35 kg

If your doctor gives a target as a percentage, 5% of 11 stone is 7.7 pounds, or 3.49 kg. That would take you to about 66.4 kg, which is 10 stone 6. Ten per cent is 15.4 pounds, or 6.99 kg.

How should you write 11 stone on a form that asks for kg?

Write 69.9 if the form allows one decimal place and 70 if it wants a whole number. Both are correct roundings of 69.85 kg.

For medical forms, use the most exact figure you have. If you have been weighed recently in kilograms, give that reading instead of converting from stone, because conversions from memory are often a few pounds out.

For forms that go to the United States, give 154 pounds. Stone is not used there.

How do you convert 11 stone to kg on a phone?

Open the calculator app, type 11, multiply by 6.35029 and press equals. The screen shows 69.85.

You can also type the question into a search engine or ask a voice assistant. Be careful with how you word it when pounds are involved. Ask for “11 stone 6 pounds in kg” in full. If you type “11.6 stone”, the phone treats it as a decimal and returns 73.66 kg, when 11 stone 6 pounds is really 72.57 kg. That is a gap of more than a kilogram from one small typing habit.

What is 11 stone in pounds, ounces and grams?

Eleven stone is 154 pounds, 2,464 ounces or 69,853 grams.

Unit	11 stone equals
Kilograms	69.85 kg
Grams	69,853 g
Pounds	154 lb
Ounces	2,464 oz

Which kg figures are close to 11 stone?

Weights from 68 to 72 kg all sit within a few pounds of 11 stone.

• 68 kg is 10 stone 9.9 pounds
• 69 kg is 10 stone 12.1 pounds
• 70 kg is 11 stone 0.3 pounds
• 71 kg is 11 stone 2.5 pounds
• 72 kg is 11 stone 4.7 pounds

So if your scales show a figure in the high sixties or low seventies in kilograms, you are close to 11 stone.

Frequently asked questions

How many pounds is 11 stone?

Eleven stone is 154 pounds.

What is 11 stone 7 in kg?

11 stone 7 pounds is 73.03 kg.

What is 11 stone 4 in kg?

11 stone 4 pounds is 71.67 kg.

What is 11 stone 10 in kg?

11 stone 10 pounds is 74.39 kg.

How can I convert 11 stone to kg in my head?

Remember that it is just under 70 kg. Or multiply 11 by 6 to get 66 and add a third of 11, about 3.7, for a total of 69.7 kg.

Is 11 stone heavy?

It depends on height. At 5 feet 7 it gives a BMI of 24.2, which is in the healthy range. At 5 feet 1 it gives 29.1, which is overweight.

Does 11 stone to kg change between the UK and Ireland?

No. A stone is 14 pounds in both countries, so the answer is 69.85 kg in each.

What is the short answer?

Eleven stone equals 69.85 kg, or 154 pounds, and is as near to 70 kg as makes no difference. Add 0.45 kg for each extra pound. For other weights, use the stone to kg converter on this site.