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Free Weight Converter - Convert Kilograms, Pounds, Ounces, Stone Online

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Conversion Result

Common Weight Conversion Table

UnitIn KilogramsConversion
1 Metric Ton (t)1,0001 t = 1,000 kg
1 Kilogram (kg)1Base unit
1 Gram (g)0.0011 kg = 1,000 g
1 Milligram (mg)0.0000011 g = 1,000 mg
1 Pound (lb)0.45361 lb ≈ 453.6 g
1 Ounce (oz)0.028351 lb = 16 oz
1 Stone (st)6.351 st = 14 lb
1 Carat (ct)0.00021 ct = 0.2 g
1 Grain (gr)0.00006481 lb = 7,000 gr

Weight Conversion Tips

Quick Reference
1 pound = 0.4536 kg. Quick shortcut: divide pounds by 2.2 to get approximate kilograms. Multiply kg by 2.2 for pounds.
Precious Stones
1 carat = 0.2 grams exactly. Carats are used worldwide for gemstones and diamonds. A 1-carat diamond weighs just 200 milligrams.
Gym & Fitness
Olympic plates are in kg (20 kg bar). US gym plates use pounds — a 45 lb plate ≈ 20.4 kg. Always check unit labels on equipment.
Body Weight
In the UK, body weight uses stone. 1 stone = 14 lbs = 6.35 kg. A 150 lb person weighs 10 stone 10 lbs (about 68 kg).
Troy vs Standard
Gold uses troy ounces (31.1 g), not regular ounces (28.35 g). Always check which ounce system applies when trading precious metals.
Metric Tons
1 metric ton = 1,000 kg = 2,204.6 lbs. A US short ton = 2,000 lbs (907 kg). They are not the same — always verify which ton is meant.

Frequently Asked Questions

Q What is the difference between a metric ton and a US ton?
A A metric ton = 1,000 kg (2,204.6 lbs). A US short ton = 2,000 lbs (907.2 kg). A UK long ton = 2,240 lbs (1,016 kg).
Q How do I convert body weight from pounds to kg?
A Divide your weight in pounds by 2.205. For example, 160 lbs ÷ 2.205 = 72.6 kg. Or multiply lbs by 0.4536.
Q How do I convert a baby's birth weight from grams to pounds and ounces for a baby book?
A Many international hospitals record birth weight in grams. To convert this to pounds and ounces for your baby book or sharing with family, first convert total grams to pounds using the converter (1 lb = 453.592 grams). The decimal part of the pound value can then be converted to ounces (multiply by 16). Our online tool can handle this two-step conversion easily, providing accurate figures for your precious memories.
Q My baking recipe lists ingredients in grams, but my kitchen scale only shows ounces. How can I convert accurately?
A Many international recipes use grams, while some kitchen scales primarily display ounces. To convert grams to ounces for your recipe, simply input the gram value into our weight converter tool and select ounces as the target unit. Our tool will provide the precise ounce equivalent, ensuring accuracy for your baking and cooking measurements.
Q How do I convert a parcel's weight from pounds and ounces into kilograms for international shipping?
A When preparing a parcel for international shipping, you often need to convert its weight from imperial (pounds and ounces) to metric (kilograms). Our free online weight converter handles this seamlessly. First, convert the total ounces to a decimal of a pound (e.g., 8 ounces = 0.5 pounds). Then, input the combined pound value into the tool and select kilograms as your target unit. This ensures accurate shipping calculations and compliance with international carrier requirements.
Q I'm buying a product online from an international store listed in kilograms. How can I quickly convert its weight to pounds to understand its size better?
A When shopping internationally, product weights are often listed in kilograms. To get a quick understanding in pounds, simply enter the kilogram value into our weight converter tool and select 'pounds' as the target unit. This provides an instant, accurate conversion, helping you visualize the product's weight and size relative to what you're familiar with, ensuring you make informed purchase decisions.
Q What units can I convert my measurements into?
A You can convert your weight into a variety of common units. The tool supports kilograms, pounds, ounces, stone, grams, and carats. Simply choose your starting unit and select your desired target unit for an instant conversion. For example, if you have 500 grams, you can easily see it's equal to about 1.1 pounds.
Q Is there a difference between a fluid ounce and a weight ounce when converting?
A Yes, a fluid ounce measures volume, not weight. One fluid ounce of water weighs about 1.04 ounces, but that changes with other liquids. Our tool strictly handles weight ounces (avoirdupois) — the kind used for solids like flour, meat, or postage. If you're cooking with a liquid, check the specific gravity first. For dry ingredients, you're good to go with this converter.
Q Can I use this converter for jewelry and precious metals?
A Absolutely. Our tool handles carats and grams, the two main units for gems and metals. A 1-carat diamond equals exactly 0.2 grams. Gold buyers often deal in troy ounces, though — that's different from standard ounces. One troy ounce weighs about 31.1 grams, while a regular ounce is 28.35. This converter uses standard avoirdupois ounces, not troy. For gemstones and everyday jewelry, carats and grams work perfectly. For bullion, double-check which ounce standard your dealer uses.
Q Why does 1 kilogram equal 2.2 pounds but my bathroom scale shows something different?
A Your scale likely rounds to the nearest half-pound, creating small discrepancies. 1 kg = 2.20462 lbs precisely, but most consumer scales display 2.2 for simplicity. If you're tracking weight changes, stick to one unit system throughout. For accurate conversions, type your exact kg value into our tool and you'll see the precise decimal. A 70 kg person actually weighs 154.32 lbs, not 154 flat.

How to Use the Weight Converter

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