What is the difference between US, UK and metric tons?

US (short) ton = 907.18474 kg, UK (long) ton = 1016.0469 kg, metric tonne = 1000 kg. All three are included for cross-region comparisons.

Is a troy ounce the same as an ounce?

No. A regular ounce is 28.3495 g; a troy ounce (used for gold and silver) is 31.10348 g. We include both as separate units.

Mass vs weight — which is this?

Strictly this is a mass converter. In everyday use weight and mass are interchanged; the converter assumes Earth-surface gravity for that purpose.

Is anything uploaded?

No — conversions run client-side and your last value/units are stored only in your browser.

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Weight Converter

Unit Converters

Weight Converter

Convert kilograms, pounds, ounces, stones, tonnes, troy ounces and more. Live, accurate, in your browser.

Weight converter

Base unit: g · 11 units

From

kg — KilogramMetric

2.204623

lb — PoundImperial

All units

1,000,000
1,000
1
0.001
35.273962
2.204623
0.15747304
0.00110231
9.8421e-4
32.150747
5,000

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Length Converter

Convert between meters, feet, inches, kilometers, miles, yards, nautical miles and more — instantly, in your browser.

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Convert liters, milliliters, US/UK gallons, cups, tablespoons, fluid ounces, cubic meters and more — live in your browser.

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Convert Celsius, Fahrenheit, Kelvin, Rankine, Réaumur. Handles negative temperatures and below-absolute-zero edge cases gracefully.

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Convert square meters, square feet, acres, hectares, square miles and more — instantly and accurately.

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Speed Converter

Convert m/s, km/h, mph, knots, ft/s, mach, and the speed of light. Live, browser-only, free.

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Data Storage Converter

Convert bits, bytes, KB/MB/GB/TB (SI) and KiB/MiB/GiB/TiB (IEC). Spot the difference between decimal and binary scales.

About Weight Converter

Convert between metric (mg, g, kg, tonne), imperial (oz, lb, st, US/UK ton) and precious-metal units (troy ounce, carat). Built on a gram-base engine so results round-trip exactly.

How to use

Type a value in the From field.
Pick the source unit (kg by default).
Pick the target unit, or read the live All units grid.
Swap flips both units. Click any row to set it as the new target.

FAQ

Frequently asked questions

Got questions? We’ve got answers. Here are some of the most common inquiries about Weight Converter.

Weight converter

Base unit: g · 11 units

From

kg — KilogramMetric

2.204623

lb — PoundImperial

All units

1,000,000
1,000
1
0.001
35.273962
2.204623
0.15747304
0.00110231
9.8421e-4
32.150747
5,000

Related tools

About Weight Converter

How to use

Frequently asked questions

What is the difference between US, UK and metric tons?

Is a troy ounce the same as an ounce?

Mass vs weight — which is this?

Is anything uploaded?

Related tools

About Weight Converter

How to use

Frequently asked questions

What is the difference between US, UK and metric tons?

Is a troy ounce the same as an ounce?

Mass vs weight — which is this?

Is anything uploaded?