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Convert grams, kilograms, pounds, and ounces online.

TempGBox

Runs 100% in your browserUpdated April 2026Free, no signup

Weight Converter

Convert between different units of weight: milligrams, grams, kilograms, ounces, pounds, and metric tons.

What is Weight Converter?

Weight Converter helps with Weight Converter Online. Convert between different units of weight: milligrams, grams, kilograms, ounces, pounds, and metric tons.

TempGBox keeps the workflow simple in your browser, so you can move from input to result quickly without extra software.

How to use Weight Converter

  1. Open Weight Converter and enter the text, value, file, or settings you want to work with.
  2. Review the output and adjust the available options until the result matches your use case.
  3. Copy, download, or reuse the final result in your workflow, content, app, or support task.

Why use TempGBox Weight Converter?

  • Convert between different units of weight: milligrams, grams, kilograms, ounces, pounds, and metric tons
  • Useful for Weight Converter Online
  • Fast browser-based workflow with no signup required

Common uses for Weight Converter

Weight Converter is useful for Weight Converter Online. It fits well into quick checks, repeated office work, development flows, content updates, and everyday browser-based problem solving.

Because the tool is available instantly on TempGBox, you can handle one-off tasks and repeated workflows without installing extra software.

FAQ

Is Weight Converter free to use?

Yes. Weight Converter on TempGBox is free to use and does not require signup before you start.

What is Weight Converter useful for?

Weight Converter is especially useful for Weight Converter Online.

Understanding Weight Converter

Mass and weight are technically different physical quantities. Mass is an intrinsic property of matter measured in kilograms (SI base unit); weight is the gravitational force on that mass measured in newtons. On Earth, the distinction is academic for everyday use (1 kg of mass weighs about 9.81 newtons), but it matters in science and engineering. Colloquially, "weight" usually means mass, and scales display mass units (kg, pounds).

The metric system uses the kilogram as the base mass unit, defined since 2019 by fixing the Planck constant's value (replacing the physical platinum-iridium prototype that served since 1889). Metric mass units follow decimal scaling: 1 metric ton = 1,000 kg, 1 kg = 1,000 g, 1 g = 1,000 mg. The imperial system uses the pound (exactly 0.45359237 kg by international agreement) with ounces (1 lb = 16 oz).

Troy ounces are used exclusively for precious metals (gold, silver, platinum) and are heavier than avoirdupois (regular) ounces. One troy ounce = 31.1035 grams, while one avoirdupois ounce = 28.3495 grams. When gold is quoted at "$2,000 per ounce," it means troy ounces. A "troy pound" (12 troy ounces = 373.24 g) is lighter than a regular pound (16 avoirdupois ounces = 453.59 g). This dual system confuses even professionals.

Stones (14 pounds) are still commonly used for body weight in the UK and Ireland. A person weighing "11 stone 7" means 161 pounds or about 73 kg. The unit dates to the medieval period when actual stones were used as balance weights, with the specific weight varying by commodity before standardization.

Step-by-Step Guide

  1. Enter the numeric value you want to convert.
  2. Select the source unit: milligrams, grams, kilograms, metric tons, ounces, pounds, stones, or troy ounces.
  3. View instant conversions to all supported units.
  4. For cooking conversions, note that fluid ounces (volume) are different from ounces (weight). This tool converts weight/mass units only.
  5. For precious metal calculations, use troy ounces rather than regular ounces to match industry standard pricing.

Real-World Use Cases

An American following a European nutrition plan converts the recommended 2 kg weekly weight loss goal to pounds (4.4 lbs) to track progress on their imperial scale.

A precious metals investor calculates the weight of their gold holdings. Converting 10 troy ounces to grams (311 g) and then to regular ounces (10.97 oz) clarifies the difference between troy and avoirdupois systems.

A baker converting a British recipe calling for 225g of flour to the American equivalent: approximately 8 ounces or 1 cup, though the exact volume depends on flour density.

A shipping coordinator calculates whether a pallet of goods (1,850 lbs) exceeds the 1-metric-ton weight limit for a freight container (1,850 lbs = 839 kg, safely under the limit).

Expert Tips

For cooking, remember that fluid ounces measure volume while regular ounces measure weight. A fluid ounce of honey weighs about 1.5 ounces. This converter handles weight only — use a volume converter for fluid measurements.

When buying precious metals internationally, always confirm whether the price is per troy ounce or per gram. The per-troy-ounce price is about 31.1 times the per-gram price, and mixing up the units means a 10% error.

For fitness tracking, a useful approximation: multiply kilograms by 2.2 to get pounds. For stones, divide pounds by 14. A 70 kg person weighs about 154 lbs or 11 stone.

Frequently Asked Questions

What is the difference between mass and weight?

Mass is an intrinsic property of matter (how much stuff there is) measured in kilograms. Weight is the gravitational force on that mass, measured in newtons. On Earth, the distinction is negligible for everyday use, but on the Moon you would weigh 1/6 as much while having the same mass.

How many grams are in a troy ounce?

One troy ounce equals 31.1035 grams, which is about 10% heavier than a regular (avoirdupois) ounce at 28.3495 grams. Gold, silver, and other precious metals are always quoted in troy ounces. Confusing the two ounce types leads to significant pricing errors.

What is a stone in weight measurement?

One stone equals 14 pounds (6.35 kg). It is commonly used for body weight in the UK and Ireland. Someone weighing "12 stone" weighs 168 pounds or about 76 kg. The unit is rarely used outside of British and Irish contexts.

How exact is the pound-to-kilogram conversion?

It is exact by international agreement: 1 pound = exactly 0.45359237 kilograms. This definition was established in 1959 by the US, UK, Canada, Australia, New Zealand, and South Africa. All other imperial-to-metric mass conversions derive from this definition.

Why does the metric system use kilograms as the base unit instead of grams?

The kilogram was historically defined by a physical artifact (a platinum-iridium cylinder). While grams would be more consistent with the metric naming convention (where the base unit has no prefix), the kilogram became the SI base unit for practical reasons — it is a convenient everyday mass scale. The 2019 redefinition via the Planck constant maintains the kilogram as base unit.

Privacy: Weight conversion is a pure mathematical calculation performed in your browser. No data is transmitted to any server.