Kilograms to pounds
The default pair, at the exact factor.
Input
1 kg → poundsOutput
2.204623 lb — note the exact factor, not the casual ×2Weight Converter
Convert kilograms, grams, milligrams, tonnes, pounds, ounces, and stones with exact factors, a live all-units grid, and precision control.
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- No sign-up for this tool
- Processing clearly labeled
- Instant results
Content last reviewed
1 kilograms equals
2.204623lb
1 kg = 2.204623 lb
Decimals
All units at a glance
Kilograms → Pounds reference
| Kilograms (kg) | Pounds (lb) |
|---|---|
| 1 | 2.204623 |
| 2 | 4.409245 |
| 5 | 11.023113 |
| 10 | 22.046226 |
| 20 | 44.092452 |
| 50 | 110.231131 |
| 100 | 220.462262 |
The formula
Masses are converted through kilograms. The pound is defined as exactly 0.45359237 kg, so kg → lb is kg × 2.20462 and lb → kg is lb ÷ 2.20462. An ounce is 1/16 lb and a stone is 14 lb (used for body weight in the UK and Ireland).
Quick Start
Enter the weight
Type the amount and select its current unit.
Read the conversion
The To-unit result shows large, with every other unit in the live grid below.
Adjust and copy
Swap the pair, set the decimals, and copy the result or any card.
Examples
A body weight in three units
The grid delivers all the versions of the number at once.
Input
70 kgOutput
154.32 lb · 11.02 stones · 70,000 g — read together from the gridAbout the Weight Converter
Body weight quoted in stones, a parcel limit in kilograms, a recipe in ounces, a supplement dose in milligrams — weight arrives in whichever unit the source country prefers, and the mental factors are just awkward enough to get wrong. This converter covers the seven units that matter — milligrams, grams, kilograms, and metric tonnes alongside ounces, pounds, and stones — converting all of them at once as you type.
The factors are the exact legal definitions: one pound is precisely 0.45359237 kg (which is why the quick "divide by two" estimate drifts about 10%), an ounce is a sixteenth of that, and a stone is fourteen pounds. The interface matches the other converters in the family: a headline From→To result with swap and copy, decimal precision from whole numbers to six places, a click-to-copy grid of every unit, and a reference table of common values for the current pair.
Stones deserve the special mention: the UK's body-weight unit confuses everyone else, and "12 stone 6" means 12 × 14 + 6 = 174 pounds before any metric conversion. Convert stone-and-pound weights through total pounds, the same way heights go through inches.
How to Use Weight Converter
Type the weight into the amount box and pick its From unit.
Read the headline result in your To unit, or take any figure from the live all-units grid.
Use swap to reverse the pair and the decimals control (Auto
/0/2/4/6, plus scientific notation) to shape the output.Copy the result or click any grid card to copy that unit's value.
For stone-and-pound figures like "12 st 6 lb", convert via total pounds (12 × 14 + 6 = 174 lb) for a clean result.
Key Features
Seven practical units
mg, g, kg, and tonnes with oz, lb, and st — covering doses, recipes, body weight, and freight.
Exact legal factors
The pound is exactly 0.45359237 kg by definition; ounces and stones derive from it precisely.
Live all-units grid
Every unit converts simultaneously, each card copyable in one click.
Precision control
Auto or 0–6 decimals with a scientific-notation option for extremes.
Reference table
Common values for the current pair, generated automatically.
When to Use Weight Converter
Body weight across systems
Translate between kg, pounds, and UK stones for forms, gyms, and conversations.
Shipping and luggage
Check parcels and bags against limits quoted in the other system.
Cooking and baking
Convert recipe ounces and pounds into grams for the scale.
Doses and small masses
Move between milligrams and grams without counting zeroes.
How It Works
All conversions pass through the kilogram base: amount × From-factor gives kilograms, divided by the To-factor gives the result. The imperial factors are exact by definition — lb = 0.45359237 kg, oz = lb ÷ 16 = 0.028349523125 kg, st = 14 lb = 6.35029318 kg — so the arithmetic is precise and only the display rounds, at the precision you choose. The grid derives every unit from the same base value.
Supported Formats and Options
Options
From / To with swap
Any pair of the seven units, reversible in one click.
Decimals and notation
Auto or fixed 0–6 places; scientific notation for very large or small masses.
Copy and reset
Headline result and every grid card copy on click; reset restores defaults.
Common Errors and Troubleshooting
Common errors
Halving kg to get pounds
The real factor is 2.20462, so "divide by two" is ~10% off — 25 kg of luggage is 55.1 lb, not 50. Use the exact result for anything with a limit attached.
Misreading stone notation
"12 stone 6" is 12 stones plus 6 pounds, not 12.6 stones. Convert via total pounds (174 lb) to avoid the decimal trap.
Troubleshooting guide
Weights that clear the check-in desk
- Limits: airline and courier caps are enforced on their scale, in their unit — convert your measured weight exactly and leave margin rather than rounding down.
- Recipes: for baking, convert to grams and weigh; volume-based cups for dry goods vary by how you scoop (the Volume & Cooking Converter covers those).
- Mixed-unit sources: pick one working unit per task and convert everything into it once, rather than juggling systems line by line.
- Tiny doses: switch precision up and use the mg/g pair — and treat medical dosing as the domain of the label and pharmacist, with this tool as arithmetic only.
Limitations and Important Notes
The set covers the seven everyday units; troy ounces, carats, US (short) and UK (long) tons are out of scope — the tonne here is the 1,000 kg metric tonne. Stone-and-pound composite entry is not parsed; use total pounds. Display rounds to at most six decimals or scientific notation.
Privacy and Data Processing
Conversion happens entirely in your browser; the values you enter are never uploaded or stored.
Tips and Best Practices
Practical tips
Use the exact result near any limit — the casual ÷2 estimate drifts 10%.
Convert stone-and-pound figures through total pounds.
Note the tonne is metric (1,000 kg), not a US or UK ton.
Weigh in grams for baking precision and convert the recipe once.
Copy values from the cards instead of retyping them.
Best practices
One weight, no surprises
Convert at the boundary: the moment a figure enters your task from the other system — a recipe, a limit, a form — convert it once, write it down with its unit, and work natively from there. Repeated ad-hoc conversion is how the 10% mental-math drift compounds into an overweight bag.
For anything enforced (luggage, freight, postage), respect the enforcing side's unit and scale: convert your measurement exactly, then leave a real margin — scales disagree with each other more than conversions do.
Technical Details
Kilogram-based conversion with exact definitional factors (lb 0.45359237, oz 0.028349523125, st 6.35029318, t 1000). Formatting matches the converter family: auto precision with scientific fallback for extremes, fixed 0–6 decimals, exponential toggle, and plain-number copy payloads. Fully client-side.
Who Is This For?
Travellers packing against limits, cooks translating recipes, people tracking body weight across unit cultures, and shippers quoting parcels — anyone who meets mass in a unit their scale does not speak.
Frequently Asked Questions
How many pounds is a kilogram exactly?
2.20462 lb (the pound is defined as exactly 0.45359237 kg). The casual divide-by-two shortcut understates by about 10% — enough to matter at a luggage scale.
What is a stone?
A UK body-weight unit of 14 pounds (about 6.35 kg). Weights are spoken as stones plus pounds — "12 stone 6" is 174 lb — so convert via total pounds rather than reading it as a decimal.
Is the tonne here the same as a US ton?
No — this converter uses the metric tonne of exactly 1,000 kg. The US short ton (907.2 kg) and UK long ton (1,016 kg) are different units and are not included.
How precise are the results?
The factors are exact legal definitions and the math runs at full precision; only the display rounds, at the setting you choose (Auto or 0–6 decimals, with scientific notation available).
Can I convert ounces for a recipe?
Yes — weight ounces convert exactly (1 oz = 28.35 g). Note that fluid ounces are volume, a different quantity: those live in the Volume & Cooking Converter.