Weight Converter
Enter a weight and see it instantly in kilograms, pounds, grams, ounces, stone and tonnes.
✔ 100% Free✔ No Signup✔ No Watermark✔ Unlimited Use
Convert Any Weight Instantly
This free weight converter turns a value into every common unit at once. Type a number, choose the unit, and see it in kilograms, pounds, grams, ounces, stone and tonnes. It is the fastest way to convert kg to lbs, pounds to kilograms, or grams to ounces without the mental math.
Results are exact and update as you type, all in your browser. Use it for recipes, shipping, the gym, or anywhere metric and imperial weights meet.
How to Use the Weight Converter
- 1Type your value in the box.
- 2Pick the unit you entered.
- 3Read the same weight in every other unit, updated live.
Why Use MakeToolz's Weight Converter?
Every common unit
Milligrams, grams, kilograms, ounces, pounds, stone and tonnes together.
See all at once
Enter one value and read it in every unit.
Exact factors
Uses the precise standard, like 1 lb = 453.59237 g.
Metric and imperial
Convert freely in either direction.
Private
All conversion runs in your browser.
Free
No signup, no limits.
How Weight Conversion Actually Works
Every weight unit is defined against one shared base, and the converter uses that base to move between them. The kilogram is the anchor of the metric system, and each other unit is a fixed multiple or fraction of a gram. To convert, the tool turns your value into grams, then divides by the target unit's factor. That is why the numbers stay exact instead of drifting like rounded shortcuts do.
The factors are set by international standard, not opinion. One pound equals exactly 453.59237 grams. One ounce is one-sixteenth of a pound, so 28.349523125 grams. One stone is 14 pounds. A metric tonne is 1,000,000 grams, and a milligram is one-thousandth of a gram. Because these values are fixed, a conversion done today matches one done anywhere else.
Who Uses a Weight Converter and Why
Home cooks convert grams to ounces when a recipe was written for a different country. Shippers convert kilograms to pounds because carriers price parcels in imperial units in the United States and metric almost everywhere else. People tracking body weight switch between stone, pounds, and kilograms depending on where they live. Students, nurses, and lab workers convert milligrams and grams for doses and measurements. In each case the goal is the same: read one number in the unit that fits the task.
Common Conversion Factors
| From | To | Multiply by |
|---|---|---|
| Kilograms (kg) | Pounds (lb) | 2.20462 |
| Pounds (lb) | Kilograms (kg) | 0.453592 |
| Ounces (oz) | Grams (g) | 28.3495 |
| Grams (g) | Ounces (oz) | 0.035274 |
| Stone (st) | Pounds (lb) | 14 |
| Tonnes (t) | Kilograms (kg) | 1000 |
Benefits and Limits
The main benefit is speed with accuracy. You get every unit from one entry, and the math is done to standard precision so you never trust a rough mental estimate for something that matters, like a shipping label or a medication note. It also works the same in both directions, so there is no separate tool for metric-to-imperial and back.
The limit worth knowing is that weight and mass are not identical in physics. On Earth the difference does not affect everyday use, so kilograms and pounds are treated as interchangeable measures of how heavy something is. For very precise scientific work you would use mass units carefully, but for cooking, shipping, and fitness this tool is exactly right. If you also need distances, the length converter handles meters, feet, and miles the same way, and the temperature converter does the same for Celsius and Fahrenheit.
Common Mistakes and Tips
- Do not confuse the US and metric tonne. This tool uses the metric tonne of 1,000 kilograms, not the US short ton of 2,000 pounds.
- Watch the difference between an ounce of weight and a fluid ounce. This converter handles weight only, so a fluid ounce of liquid volume is a separate measurement.
- Round at the end, not the middle. If you round pounds first and then convert to kilograms, small errors add up. Let the tool carry full precision and round the final answer.
- Tip: for a quick head check, remember 1 kg is a little over 2.2 lb, so double the kilograms and add 10 percent.
People Also Ask
How many pounds is 1 kilogram?
One kilogram equals about 2.2046 pounds. So 5 kg is roughly 11 lb. Enter your value with Kilograms selected to see the exact figure.
What is 100 grams in ounces?
100 grams is about 3.53 ounces. Grams are smaller than ounces, so it takes a little over 28 grams to make one ounce.
How do I convert stone to kilograms?
Multiply stone by 6.35029. So 12 stone is about 76.2 kg. Pick Stone as your unit and the tool shows kilograms and every other unit at once.
Is a tonne the same as a ton?
Not always. A metric tonne is 1,000 kg, while a US short ton is 907 kg and a UK long ton is 1,016 kg. This tool uses the metric tonne.
How many ounces are in a pound?
There are 16 ounces in one pound. So half a pound is 8 ounces, and a quarter pound is 4 ounces.
What is 70 kg in pounds?
70 kilograms is about 154.3 pounds. Enter 70 with Kilograms selected to confirm the exact number.
Why do the US and UK measure body weight differently?
The UK commonly uses stone and pounds, while the US uses pounds alone and most other countries use kilograms. The weight is the same; only the unit changes.