Weight Converter

What is the Weight Converter?

Convert any weight unit to all others at once — mg, g, kg, t, oz, lb, st. Weight and mass units include grams, kilograms, pounds, ounces and stone, used in cooking, shipping, fitness and medicine.

How to use the Weight Converter

1. Enter your value, your from unit.
2. Results update automatically as you type; you can also press Calculate.
3. Read the output: milligram (mg), gram (g), kilogram (kg), metric ton (t).
4. Check the chart to see how the conversion scales.

Formula and method

Worked example

With value = 1, from unit = Milligram (mg), the Weight Converter returns milligram (mg): 1 mg; gram (g): 0.001 g; kilogram (kg): 0.000001 kg.

When an all-in-one weight converter helps

A British recipe uses grams but your kitchen scale shows ounces. Entering each amount shows grams, ounces and pounds together.

A traveler checks a 23 kg baggage limit against a luggage scale in pounds and sees the equivalent in every unit at once.

Watch out for these mix-ups

• Confusing fluid ounces with weight ounces.
• Mixing metric tonnes with US short tons.
• Rounding weights used to calculate medicine doses.
• Leaving packaging out of shipping weights.

Tips for better results

• Use one unit consistently.
• Check package weights carefully.
• Use exact values for medicine.

💡 Practical tip: A metric ton is 1,000 kg, while a US short ton is about 907 kg.

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