Milligram and gram (mg, g)
Metric units for small quantities such as ingredients, supplements, and lightweight products.
Everyday converter
Weight & Mass Converter
This weight converter switches between pounds, kilograms, ounces, grams, and stone instantly in your browser. The pound is defined as exactly 0.45359237 kg, so only the figure on screen is rounded.
- Instant results
- Private & secureNo data is uploaded
- Works on all devices
Common weight & mass units
- Milligrams (mg)1 kg = 1,000,000 mg
- Grams (g)1 kg = 1,000 g
- Kilograms (kg)The unit this converter works in
- Ounces (oz)1 kg = 35.27396 oz
- Pounds (lb)1 kg = 2.204623 lb
- Stones (st)1 st = 6.350293 kg
Conversion formula
Every conversion here uses the published factor, not a rounded one.
Example: Kilograms to Pounds
1 kg = 2.204623 lb
To convert kilograms to pounds, multiply by 2.204623:
70 kg = 154.3236 lb
Figures on this page are shown to seven significant digits. The converter keeps the full precision and rounds only what it displays.
Did you know?
The pound is defined through the kilogram: exactly 0.45359237 kg. That is why 1 kg comes to 2.204623 lb rather than the rounder 2.2 people use in their heads.
A stone is exactly 14 pounds, so a weight given as 11 st 4 lb is 158 lb in total.
Kilograms to pounds
Convert kilograms to pounds and pounds to kilograms on one page. The pound is defined as exactly 0.45359237 kg, so both directions run on the same fixed factor rather than an approximation.
Formula: pounds = kilograms ÷ 0.45359237, and the other way: kilograms = pounds × 0.45359237
| Kilograms (kg) | Pounds (lb) |
|---|---|
| 1 kg | 2.2046 lb |
| 2 kg | 4.4092 lb |
| 5 kg | 11.0231 lb |
| 10 kg | 22.0462 lb |
| 20 kg | 44.0925 lb |
| 50 kg | 110.2311 lb |
| 60 kg | 132.2774 lb |
| 70 kg | 154.3236 lb |
| 80 kg | 176.3698 lb |
| 90 kg | 198.416 lb |
Grams to ounces
Convert grams to ounces and ounces to grams on one page. One ounce is exactly 28.349523125 g, so both directions run on the same defined factor.
Formula: ounces = grams ÷ 28.349523125, and the other way: grams = ounces × 28.349523125
| Grams (g) | Ounces (oz) |
|---|---|
| 1 g | 0.0353 oz |
| 5 g | 0.1764 oz |
| 10 g | 0.3527 oz |
| 25 g | 0.8818 oz |
| 28.3495 g | 1 oz |
| 50 g | 1.7637 oz |
| 100 g | 3.5274 oz |
| 125 g | 4.4092 oz |
| 250 g | 8.8185 oz |
| 500 g | 17.637 oz |
Stone to pounds
Convert stone to pounds for body-weight records, fitness goals, and UK-to-US comparisons. Stone is a mass unit still used mainly in the United Kingdom and Ireland, and one stone contains exactly 14 avoirdupois pounds.
Formula: pounds = stone × 14
| Stones (st) | Pounds (lb) |
|---|---|
| 1 st | 14 lb |
| 5 st | 70 lb |
| 7 st | 98 lb |
| 8 st | 112 lb |
| 9 st | 126 lb |
| 10 st | 140 lb |
| 11 st | 154 lb |
| 12 st | 168 lb |
| 13 st | 182 lb |
| 14 st | 196 lb |
How to use this converter
- Choose unitsSelect the source and destination units for the measurement.
- Enter a valueThe converted result updates from the maintained unit formula.
- Copy and verifyCopy the result and check the units and rounding required by the destination.
Processing and privacy
Conversion math runs locally in the browser without a calculation API. This category converter can store selected units and values in the page URL so a state can be restored or shared; avoid sharing a URL that contains a value you consider sensitive. Ordinary hosting and analytics are separate from the conversion logic.
Unit guide
Weight and mass units
Kilograms, grams, pounds, and ounces are units of mass. In everyday conversation, people usually say “weight,” so this converter uses the familiar wording while applying standard mass conversion factors.
Kilogram (kg)
The SI base unit of mass, widely used for body mass, luggage, packages, and goods.
Ounce and pound (oz, lb)
Avoirdupois units used in the US for food, body weight, gym plates, and shipping.
Stone (st)
A unit equal to exactly 14 pounds, still used mainly for body weight in the UK and Ireland.
How the math works
Conversion formulas
- Kilograms to poundspounds = kilograms × 2.20462262Example: 70 kilograms × 2.20462262 = 154.3236 pounds
- Pounds to kilogramskilograms = pounds × 0.45359237Example: 150 pounds × 0.45359237 = 68.0389 kilograms
- Ounces to gramsgrams = ounces × 28.349523125Example: 8 ounces × 28.349523125 = 226.7962 grams
- Grams to ouncesounces = grams ÷ 28.349523125Example: 100 grams ÷ 28.349523125 = 3.5274 ounces
- Stone to poundspounds = stone × 14Example: 12 stone × 14 = 168 pounds
- Pounds to stonestone = pounds ÷ 14Example: 154 pounds ÷ 14 = 11 stone
Quick reference
Weight conversion chart
Common weight conversions for body weight, packages, and cooking. 1 kilogram equals 2.20462262 pounds. 1 avoirdupois ounce equals 28.349523125 grams. 1 stone equals 14 pounds.
Kilograms to pounds
| Kilograms (kg) | Pounds (lb) |
|---|---|
| 1 kg | 2.2046 lb |
| 5 kg | 11.0231 lb |
| 10 kg | 22.0462 lb |
| 20 kg | 44.0925 lb |
| 50 kg | 110.2311 lb |
| 60 kg | 132.2774 lb |
| 70 kg | 154.3236 lb |
| 80 kg | 176.3698 lb |
| 90 kg | 198.4160 lb |
| 100 kg | 220.4623 lb |
| 150 kg | 330.6934 lb |
Pounds to kilograms
| Pounds (lb) | Kilograms (kg) |
|---|---|
| 1 lb | 0.4536 kg |
| 5 lb | 2.2680 kg |
| 10 lb | 4.5359 kg |
| 50 lb | 22.6796 kg |
| 100 lb | 45.3592 kg |
| 150 lb | 68.0389 kg |
| 180 lb | 81.6466 kg |
| 200 lb | 90.7185 kg |
Grams to ounces
| Grams (g) | Ounces (oz) |
|---|---|
| 1 g | 0.0353 oz |
| 28.3495 g | 1.0000 oz |
| 50 g | 1.7637 oz |
| 100 g | 3.5274 oz |
| 250 g | 8.8185 oz |
| 454 g | 16.0144 oz |
| 500 g | 17.6370 oz |
Ounces to grams
| Ounces (oz) | Grams (g) |
|---|---|
| 1 oz | 28.3495 g |
| 2 oz | 56.6990 g |
| 4 oz | 113.3981 g |
| 8 oz | 226.7962 g |
| 12 oz | 340.1943 g |
| 16 oz (1 lb) | 453.5924 g |
Stone to pounds
| Stone (st) | Pounds (lb) |
|---|---|
| 1 st | 14 lb |
| 8 st | 112 lb |
| 10 st | 140 lb |
| 11 st | 154 lb |
| 12 st | 168 lb |
| 14 st | 196 lb |
| 15 st | 210 lb |
Everyday use
Practical weight and mass examples
Luggage and shipping
Compare an airline kilogram limit with pounds, or convert a parcel weight for an international carrier.
Cooking and packaged food
Move between grams and ounces when a recipe and a kitchen scale use different systems.
Fitness and body weight
Translate body weight or gym equipment labels between kilograms, pounds, and stone.
Context
Where these units are used
US daily life uses pounds and ounces for body weight, groceries, and shipping. Fitness apps and doctor forms often ask for pounds. Package labels may also list grams or kilograms for imported food.
Kilograms are the metric base unit for mass and dominate science, sports weigh-ins outside the US, and most international product data. Stone still appears in some UK weight talk. This weight converter helps you read either system without doing the math by hand.
Frequently asked questions
How many pounds is 70 kg?
70 kg is 154.324 pounds. Multiply kilograms by 2.20462262 to convert to pounds. 100 kg is 220.462 pounds.
How many kilograms is 150 pounds?
150 pounds is 68.039 kilograms. Multiply pounds by 0.45359237 to convert to kilograms. 200 pounds is 90.718 kilograms.
How many grams is 1 ounce?
1 ounce is 28.3495 grams. Multiply ounces by 28.349523125 for grams. 16 ounces is 1 pound, or 453.592 grams.
How many pounds is 12 stone?
12 stone is 168 pounds. One stone is exactly 14 pounds. Multiply stone by 14 for pounds.
Is this weight converter free with no sign-up?
Yes. This converter is free with no sign-up and no account. Use it as often as you need in your browser.
How many kg is 150 pounds?
150 pounds is 68.04 kg. Multiply pounds by 0.45359237 to get kilograms. 200 pounds is 90.72 kg.
Does this page convert lbs to kg too?
Yes, both directions run on this page. Enter kilograms to read pounds, or enter pounds to read kilograms. The chart covers both.
Is a pound exactly 0.45359237 kg?
Yes. The international pound is defined as exactly 0.45359237 kilograms. Neither direction of this conversion is an approximation.
How many ounces is 100 grams?
100 grams is 3.53 ounces. Divide grams by 28.349523125 to get ounces. 250 grams is 8.82 ounces.
How many grams is 8 ounces?
8 ounces is 226.80 grams. Multiply ounces by 28.349523125 to get grams. 16 ounces is 453.59 grams, or one pound.
Does this page convert ounces to grams too?
Yes, both directions run on this page. Enter grams to read ounces, or enter ounces to read grams. The chart lists both.
Is a fluid ounce the same as an ounce?
No. A fluid ounce measures volume and an ounce measures weight. Use the volume converter for cups, pints, and fluid ounces.
How many pounds is 1 stone?
1 stone is exactly 14 pounds. Multiply stone by 14. 2 stone is 28 pounds.
How many pounds is 10 stone?
10 stone is exactly 140 pounds. Multiply stone by 14 for pounds. 15 stone is 210 pounds.
How many pounds is 14 stone?
14 stone is exactly 196 pounds. Multiply stone by 14. 11 stone is 154 pounds.