About Weight Converter
One stone is 14 pounds, which is 6.350293 kilograms, and one kilogram is 2.204623 pounds. Enter a weight, choose the unit it is in and the unit you want, and this converter returns the answer to up to six decimal places plus a table of the same weight in milligrams, grams, kilograms, tonnes, ounces, pounds, stone and US short tons. Stone results are decimal: 70 kg comes out as 11.023113 st, not as 11 st 0.3 lb. The pounds row of the table gives you the figure needed to split it, and the charts below already list common body weights in stone and pounds.
Kg to stone and pounds chart
Kilograms converted with this tool. The pounds and decimal stone columns are the tool's output; the last column splits the pounds figure into whole stone plus remaining pounds, rounded to one decimal place.
| Kilograms | Pounds | Stone (decimal) | Stone and pounds |
|---|---|---|---|
| 40 kg | 88.184905 lb | 6.298922 st | 6 st 4.2 lb |
| 45 kg | 99.208018 lb | 7.086287 st | 7 st 1.2 lb |
| 50 kg | 110.231131 lb | 7.873652 st | 7 st 12.2 lb |
| 55 kg | 121.254244 lb | 8.661017 st | 8 st 9.3 lb |
| 60 kg | 132.277357 lb | 9.448383 st | 9 st 6.3 lb |
| 65 kg | 143.30047 lb | 10.235748 st | 10 st 3.3 lb |
| 70 kg | 154.323584 lb | 11.023113 st | 11 st 0.3 lb |
| 75 kg | 165.346697 lb | 11.810478 st | 11 st 11.3 lb |
| 80 kg | 176.36981 lb | 12.597844 st | 12 st 8.4 lb |
| 85 kg | 187.392923 lb | 13.385209 st | 13 st 5.4 lb |
| 90 kg | 198.416036 lb | 14.172574 st | 14 st 2.4 lb |
| 95 kg | 209.439149 lb | 14.959939 st | 14 st 13.4 lb |
| 100 kg | 220.462262 lb | 15.747304 st | 15 st 10.5 lb |
| 110 kg | 242.508488 lb | 17.322035 st | 17 st 4.5 lb |
| 120 kg | 264.554715 lb | 18.896765 st | 18 st 12.6 lb |
| 150 kg | 330.693393 lb | 23.620957 st | 23 st 8.7 lb |
| 210 kg | 462.970751 lb | 33.069339 st | 33 st 1.0 lb |
| 290 kg | 639.34056 lb | 45.667183 st | 45 st 9.3 lb |
The decimal part of a stone figure is not pounds. 12.597844 st is 12 stone plus 0.597844 x 14 = 8.4 lb, not 12 st 6 lb.
Pounds to stone and kg chart
Weights in pounds with the decimal stone and kilogram results from the tool, and the stone and pounds split.
| Pounds | Stone (decimal) | Stone and pounds | Kilograms |
|---|---|---|---|
| 100 lb | 7.142857 st | 7 st 2 lb | 45.359237 kg |
| 120 lb | 8.571429 st | 8 st 8 lb | 54.431084 kg |
| 140 lb | 10 st | 10 st 0 lb | 63.502932 kg |
| 150 lb | 10.714286 st | 10 st 10 lb | 68.038855 kg |
| 160 lb | 11.428571 st | 11 st 6 lb | 72.574779 kg |
| 180 lb | 12.857143 st | 12 st 12 lb | 81.646627 kg |
| 200 lb | 14.285714 st | 14 st 4 lb | 90.718474 kg |
| 208 lb | 14.857143 st | 14 st 12 lb | 94.347213 kg |
| 209 lb | 14.928571 st | 14 st 13 lb | 94.800805 kg |
| 219 lb | 15.642857 st | 15 st 9 lb | 99.336729 kg |
| 250 lb | 17.857143 st | 17 st 12 lb | 113.398093 kg |
| 300 lb | 21.428571 st | 21 st 6 lb | 136.077711 kg |
| 600 lb | 42.857143 st | 42 st 12 lb | 272.155422 kg |
Stone to kg and pounds chart
Whole stone values converted with the tool. Each stone adds exactly 14 lb, 224 oz and 6.35029318 kg.
| Stone | Kilograms | Pounds | Grams |
|---|---|---|---|
| 1 st | 6.350293 kg | 14 lb | 6350.29318 g |
| 2 st | 12.700586 kg | 28 lb | 12700.58636 g |
| 3 st | 19.05088 kg | 42 lb | 19050.87954 g |
| 5 st | 31.751466 kg | 70 lb | 31751.4659 g |
| 8 st | 50.802345 kg | 112 lb | 50802.34544 g |
| 9 st | 57.152639 kg | 126 lb | 57152.63862 g |
| 10 st | 63.502932 kg | 140 lb | 63502.9318 g |
| 11 st | 69.853225 kg | 154 lb | 69853.22498 g |
| 12 st | 76.203518 kg | 168 lb | 76203.51816 g |
| 13 st | 82.553811 kg | 182 lb | 82553.81134 g |
| 14 st | 88.904105 kg | 196 lb | 88904.10452 g |
| 15 st | 95.254398 kg | 210 lb | 95254.3977 g |
| 16 st | 101.604691 kg | 224 lb | 101604.69088 g |
| 18 st | 114.305277 kg | 252 lb | 114305.27724 g |
| 20 st | 127.005864 kg | 280 lb | 127005.8636 g |
How to turn decimal stone into stone, pounds and ounces
The converter reports stone as a single decimal number. To write it the way bathroom scales and UK health forms do, work from the Pound (lb) row of the results table.
- Convert your weight with To set to Stone (st). Example: 65 kg gives 10.235748 st.
- Keep the whole number as the stone: 10 st.
- Find the Pound (lb) row in the table: 143.30047 lb. Subtract 14 lb for each whole stone: 143.30047 - 140 = 3.30047 lb, so 65 kg is about 10 st 3.3 lb.
- For ounces, multiply the decimal part of the pounds by 16: 0.30047 x 16 is about 4.8 oz, giving 10 st 3 lb 4.8 oz.
- To go back the other way, multiply the stone by 14, add the pounds, enter the total with From set to Pound (lb) and convert to Kilogram (kg).
Worked weight conversions
Each result below is the tool's own output for the inputs shown.
290 kg in stone
Value 290, From Kilogram (kg), To Stone (st)
45.667183 st (rounded: 45.67 st)
The pounds row shows 639.34056 lb. 45 stone is 630 lb, so this is 45 st 9.3 lb.
20 stone 5 lb in kg
20 x 14 + 5 = 285. Value 285, From Pound (lb), To Kilogram (kg)
129.273825 kg (rounded: 129.27 kg)
Stone and pounds cannot be typed in together, so combine them into pounds first.
600 pounds in stone and ounces
Value 600, From Pound (lb), To Stone (st)
42.857143 st
42 stone is 588 lb, leaving 12 lb, so 600 lb is 42 st 12 lb. The ounces row shows 9600 oz.
2.2 lb to grams
Value 2.2, From Pound (lb), To Gram (g)
997.903214 g (rounded: 997.9 g)
2.2 lb is just short of a kilogram, because a kilogram is 2.204623 lb.
8 oz of flour in grams
Value 8, From Ounce (oz), To Gram (g)
226.796185 g (rounded: 226.8 g)
Conversion details shows the factor used: 1 oz = 28.349523 g.
A 23 kg luggage allowance in pounds
Value 23, From Kilogram (kg), To Pound (lb)
50.70632 lb (rounded: 50.71 lb)
1 tonne in US short tons
Value 1, From Tonne (metric ton), To US short ton
1.102311 ton
The same tonne is 2204.622622 lb.
Weight units in this converter and their exact size
Every conversion goes through the kilogram using these factors. The pounds column is the tool's output for one of each unit.
| Unit | In kilograms | In pounds | Defined as |
|---|---|---|---|
| Milligram (mg) | 0.000001 kg | 0.000002 lb | One thousandth of a gram |
| Gram (g) | 0.001 kg | 0.002205 lb | One thousandth of a kilogram |
| Kilogram (kg) | 1 kg | 2.204623 lb | SI base unit of mass |
| Tonne (metric ton) | 1000 kg | 2204.622622 lb | 1,000 kilograms |
| Ounce (oz) | 0.028349523125 kg | 0.0625 lb | One sixteenth of a pound |
| Pound (lb) | 0.45359237 kg | 1 lb | Exactly 0.45359237 kg |
| Stone (st) | 6.35029318 kg | 14 lb | 14 pounds |
| US short ton | 907.18474 kg | 2000 lb | 2,000 pounds |
The imperial long ton (2,240 lb), troy ounce, carat and grain are not offered. The ounce here is the everyday avoirdupois ounce, not the troy ounce used for gold and silver.
Stone, pounds and the two tons: where conversions go wrong
The stone is a unit of 14 pounds used mainly for body weight in the UK and Ireland. Because it is base 14, a decimal stone figure cannot be read as stone and pounds: 10.5 st is 10 st 7 lb, not 10 st 5 lb. That is the most common mistake when moving between kilograms, which clinics and gyms record, and the stone and pounds people quote in conversation.
The pound has been exactly 0.45359237 kg since the 1959 international yard and pound agreement, so kilograms to pounds is a defined ratio, not an approximation. The ounce is a sixteenth of a pound, 28.349523125 g.
At the heavy end there are three different tons. The metric tonne is 1,000 kg. The US short ton is 2,000 lb, or 907.18474 kg. The imperial long ton is 2,240 lb, about 1,016 kg, and is not in this converter. A load quoted in short tons is about 9 percent lighter than the same number of tonnes, so check which one a freight quote means.
Step by step
- 1
Type the weight into the Value field. Use digits and a decimal point only, with no thousands separator.
- 2
Choose the unit you are converting from in the From list, for example Kilogram (kg).
- 3
Choose the unit you want in the To list, for example Stone (st) or Pound (lb).
- 4
Read the Result, then check Conversion details for the one-unit factor and the answer rounded to two decimal places.
- 5
Look at the Same value in every unit table for the weight in all eight units. To get stone and pounds, take the whole number of stone and subtract 14 pounds for each one from the Pound (lb) row.