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Weight Converter

Convert between metric and imperial weight units (kilograms, pounds, grams, ounces, stones, etc.) instantly.

From

Popular Conversions

Quick Reference Table

Kilogram (kg)	Gram (g)
1 kg	1000 g
5 kg	5000 g
10 kg	10000 g
50 kg	50000 g
100 kg	100000 g
500 kg	500000 g
1000 kg	1000000 g

How to Convert

1. Enter the value you want to convert in the From or To input box.

2. Select the corresponding units from the dropdown menus below the input boxes.

3. The conversion calculates instantly and dynamically in both directions.

4. Click the swap button in the center to reverse the conversion direction, or click the copy icon to copy the values to your clipboard.

💡 Pro Tip: Click any of the popular conversions at the bottom of the card to configure the fields instantly!

About Weight Converter

Weight (mass) conversion is fundamental in cooking, medicine, shipping, and scientific research. While colloquially we use the term "weight," these tools technically convert "mass"—the amount of matter in an object, which remains constant regardless of gravity.

The Complexity of Ounces and Tons

Weight conversion can be tricky due to overlapping terminology. For example, an "ounce" can measure weight (avoirdupois ounce, ~28.35 grams) or volume (fluid ounce). Furthermore, there are three distinct types of "tons": the Metric Ton (1,000 kg), the US Short Ton (2,000 lbs), and the UK Long Ton (2,240 lbs). Our converter handles all of these variations with pinpoint accuracy.

Common Use Cases

Medical Dosage: Drug dosages are strictly measured in milligrams (mg) or micrograms (mcg) per kilogram (kg) of body weight. An error in pounds to kilograms conversion can be dangerous.
Baking and Culinary Arts: Professional bakers rely on precise gram measurements rather than volume cups to ensure consistent chemical reactions in dough.
Global Logistics: Shipping companies calculate freight costs based on metric tons and kilograms, requiring US exporters to convert their pound-based inventory data.

Frequently Asked Questions

Learn more about weight converter and formulas

📚 5 Questions Answered

Mass is the amount of matter in an object and is measured in kilograms or pounds. Weight is the force exerted on that mass by gravity. While they are often used interchangeably on Earth, an object's mass remains the same on the Moon, but its weight decreases!

To convert kilograms to pounds, multiply the kilogram value by 2.20462. For quick mental math, multiply by 2, and then add 10% to that number.

No. A Metric Ton (or tonne) is 1,000 kg (about 2,204.6 lbs). A Short Ton (used in the US) is exactly 2,000 lbs. A Long Ton (historically used in the UK) is 2,240 lbs.

There are exactly 16 avoirdupois ounces in 1 standard pound.

A Troy Ounce is a traditional unit of weight used specifically for precious metals like gold and silver. One troy ounce is slightly heavier than a standard ounce, equaling exactly 31.1034768 grams.