Weight Conversion Chart: The Complete Reference Guide
Whether you're cooking from a foreign recipe, shipping a parcel internationally, weighing yourself on a metric scale, or trading precious metals — this is the only weight conversion chart you'll need. Quick-reference tables, exact factors, and an interactive converter, all in one place.
Weight is one of those measurements where the world hasn't quite agreed on a single system. The metric system — grams, kilograms, tonnes — dominates most of the planet. The imperial system — ounces, pounds, stones — is still in everyday use across the United States and the United Kingdom. And then there are speciality units like the troy ounce (precious metals) and the carat (gemstones), which exist in their own niches.
The result is that almost everyone, sooner or later, needs to convert. This chart is built to make that conversion fast: scan the table for an approximate value, or use the converter below for an exact figure. If you already know the pair you need, jumping straight to grams to ounces, pounds to kilograms, or kilograms to pounds is often the quickest route.
Quick weight converter
Type any number — convert instantly between 8 weight units.
Core conversion factors at a glance
If you only memorise a handful of numbers, make it these. They're the backbone of every weight conversion you'll ever do.
| From | To | Multiply by | Quick rule |
|---|---|---|---|
| Grams (g) | Ounces (oz) | 0.035274 | Divide by 28.35 |
| Ounces (oz) | Grams (g) | 28.3495 | Multiply by ~28 |
| Kilograms (kg) | Pounds (lb) | 2.20462 | Multiply by 2.2 |
| Pounds (lb) | Kilograms (kg) | 0.453592 | Divide by 2.2 |
| Pounds (lb) | Ounces (oz) | 16 | Multiply by 16 |
| Stone (st) | Pounds (lb) | 14 | Multiply by 14 |
| Stone (st) | Kilograms (kg) | 6.35029 | Multiply by 6.35 |
| Tonnes (t) | Kilograms (kg) | 1,000 | Multiply by 1,000 |
| Tonnes (t) | Pounds (lb) | 2,204.62 | Multiply by ~2,205 |
| Carats (ct) | Grams (g) | 0.2 | Divide by 5 |
For mental arithmetic, the two most useful approximations are: 1 oz ≈ 28 g and 1 kg ≈ 2.2 lb. They're accurate enough for cooking, packing, and rough weight estimates.
Grams to ounces conversion chart
The grams-to-ounces conversion comes up constantly in cooking. American recipes typically use ounces; almost every other recipe in the world uses grams. Here are the values most home cooks need:
For exact kitchen conversions, use grams to ounces when a recipe starts in metric, or ounces to grams when a US recipe needs converting the other way.
| Grams (g) | Ounces (oz) | Common item |
|---|---|---|
| 5 g | 0.18 oz | 1 teaspoon of salt |
| 15 g | 0.53 oz | 1 tablespoon of butter |
| 28 g | 1 oz | ~1 slice of bread |
| 50 g | 1.76 oz | 1 large egg (without shell) |
| 100 g | 3.53 oz | Standard chocolate bar |
| 200 g | 7.05 oz | 1 cup of sugar |
| 250 g | 8.82 oz | Block of cream cheese |
| 454 g | 16 oz (1 lb) | 1 pound of mince |
| 500 g | 17.64 oz | Half kilo bag of flour |
| 1,000 g | 35.27 oz | 1 kilogram (2.2 lb) |
For a deeper breakdown of these three units together, see our Grams, Ounces and Pounds Conversion Guide.
Kilograms to pounds conversion chart
Body weight, luggage allowances, gym plates, parcel shipping — kilograms and pounds are the two units of choice for "human-scale" weights. The conversion factor is exactly 2.20462262, but for most everyday purposes, multiplying by 2.2 is close enough.
When a value also needs breaking down into smaller imperial units, convert first with kilograms to pounds and then use pounds to ounces to split the remainder into ounces.
| Kilograms (kg) | Pounds (lb) | Pounds & ounces |
|---|---|---|
| 1 kg | 2.20 lb | 2 lb 3.27 oz |
| 2 kg | 4.41 lb | 4 lb 6.55 oz |
| 5 kg | 11.02 lb | 11 lb 0.36 oz |
| 10 kg | 22.05 lb | 22 lb 0.74 oz |
| 20 kg | 44.09 lb | 44 lb 1.48 oz |
| 23 kg | 50.71 lb | 50 lb 11.31 oz (typical airline limit) |
| 50 kg | 110.23 lb | 110 lb 3.70 oz |
| 70 kg | 154.32 lb | 154 lb 5.18 oz |
| 80 kg | 176.37 lb | 176 lb 5.92 oz |
| 100 kg | 220.46 lb | 220 lb 7.40 oz |
Need the reverse direction? Our KG, Pounds and Ounces Guide walks through the maths with worked examples.
Pounds to ounces conversion chart
This is the easiest of all weight conversions: there are exactly 16 ounces in 1 pound. No decimals, no rounding errors.
In practice, this table often sits between metric and imperial labels: ounces to pounds helps with small packaged goods, while pounds to grams and grams to pounds are handy when shipping labels and food packaging mix both systems.
| Pounds (lb) | Ounces (oz) | Grams (g) |
|---|---|---|
| 0.25 lb | 4 oz | 113 g |
| 0.5 lb | 8 oz | 227 g |
| 1 lb | 16 oz | 454 g |
| 2 lb | 32 oz | 907 g |
| 3 lb | 48 oz | 1,361 g |
| 5 lb | 80 oz | 2,268 g |
| 10 lb | 160 oz | 4,536 g |
| 20 lb | 320 oz | 9,072 g |
Stone, pounds and kilograms chart
The stone is a uniquely British unit, still widely used for body weight in the UK and Ireland despite the country's metric switch. 1 stone = 14 pounds = 6.35029 kilograms.
If someone gives you only one side of that relationship, go straight to stone to pounds, pounds to stone, stone to kilograms, or kilograms to stone.
| Stone (st) | Pounds (lb) | Kilograms (kg) |
|---|---|---|
| 7 st | 98 lb | 44.45 kg |
| 8 st | 112 lb | 50.80 kg |
| 9 st | 126 lb | 57.15 kg |
| 10 st | 140 lb | 63.50 kg |
| 11 st | 154 lb | 69.85 kg |
| 12 st | 168 lb | 76.20 kg |
| 13 st | 182 lb | 82.55 kg |
| 14 st | 196 lb | 88.90 kg |
| 15 st | 210 lb | 95.25 kg |
| 16 st | 224 lb | 101.60 kg |
| 20 st | 280 lb | 127.01 kg |
Read more about why this unit persists in our Stone, Pounds and Kilograms Explained guide.
Metric weight units explained
The metric system is beautifully simple — every unit is a clean multiple of ten. Here are the units you'll actually encounter:
The most common jumps are milligrams to grams, grams to milligrams, grams to kilograms, and kilograms to grams for everyday metric labels.
| Unit | Symbol | In grams | Used for |
|---|---|---|---|
| Milligram | mg | 0.001 g | Medicines, vitamins, fine chemicals |
| Gram | g | 1 g | Cooking, postage, small items |
| Kilogram | kg | 1,000 g | Body weight, groceries, luggage |
| Metric tonne | t | 1,000,000 g | Vehicles, shipping, industry |
For more detail on prefixes (microgram, decagram, hectogram and the rest), see our Metric Weight Units Explained guide.
Tonnes to kilograms and pounds chart
For large-scale weights — vehicles, freight, industrial materials — the metric tonne is the standard. Note that the metric tonne (1,000 kg) differs slightly from the US "short ton" (907.185 kg) and the UK "long ton" (1,016.05 kg).
For transport and warehouse figures, the most useful dedicated tools are tonnes to kilograms, kilograms to tonnes, tonnes to pounds, and pounds to tonnes.
| Tonnes (t) | Kilograms (kg) | Pounds (lb) |
|---|---|---|
| 0.5 t | 500 kg | 1,102.31 lb |
| 1 t | 1,000 kg | 2,204.62 lb |
| 2 t | 2,000 kg | 4,409.24 lb |
| 5 t | 5,000 kg | 11,023.11 lb |
| 10 t | 10,000 kg | 22,046.23 lb |
| 20 t | 20,000 kg | 44,092.45 lb |
| 50 t | 50,000 kg | 110,231.13 lb |
See our Large Weight Conversion Guide for industrial-scale weight reference.
Carats and grams (for jewellery)
The carat is a specialised unit used almost exclusively for gemstones. 1 carat = 0.2 grams = 200 milligrams. Don't confuse it with "karat", which describes gold purity.
For jewellery paperwork, the pair you usually need is carats to grams or grams to carats, and the smallest stone weights often make grams to milligrams useful too.
| Carats (ct) | Grams (g) | Milligrams (mg) |
|---|---|---|
| 0.25 ct | 0.05 g | 50 mg |
| 0.5 ct | 0.10 g | 100 mg |
| 1 ct | 0.20 g | 200 mg |
| 2 ct | 0.40 g | 400 mg |
| 5 ct | 1.00 g | 1,000 mg |
| 10 ct | 2.00 g | 2,000 mg |
Curious about diamond pricing and how carat weight affects value? Read What Is a Carat? Diamond Carat Weight Explained. For precious metals, the troy ounce is a different beast — see our Troy Ounce to Grams Gold Guide.
All weight conversion tools
Need an exact answer for a value not in the chart? Each link below opens a dedicated converter for that specific pair of units: