Weight conversion
LBS to KG Converter
Convert pounds to kilograms when a US weight needs to be written in metric form. Use it for body weight, parcel forms, gym records, product listings, baggage checks, and metric reports.
Kilograms
68.0 kg
150 lb is 68.0 kilograms.
Exact factor
1 lb = 0.45359237 kg
Kilograms + grams
68 kg 39 g
Total grams
68039 g
Metric display
One decimal works well for body weight and everyday metric notes.
Common pound values
Start from the number on the scale or label
Pounds are common on US scales, gym notes, product labels, and parcel forms. Use the quick buttons when you need a fast checkpoint, or enter pounds and ounces separately when the source weight is mixed.
Need the opposite direction? Use kg to lbs. For more mass tools, open the weight converter hub.
Turn a pound reading into a metric record
The reverse conversion is not just a flipped formula. A pound value usually comes from a US scale, label, app, gym plate, or carrier form. The kilogram result often needs to be copied into a metric record, international profile, product feed, or shipping system.
Keep the source visible
When rewriting a weight for another market, keep the original pound value nearby until the metric record has been checked.
Separate pounds from ounces
A reading like 11 lb 8 oz is not 11.8 lb. It is 11.5 lb because there are 16 ounces in a pound.
Round for the destination
Use one decimal for body weight, two for many forms, and more only when a spreadsheet or system needs a precise stored value.
Use grams for small totals
If the kilogram value is very small, a grams converter can be easier to read than a decimal kilogram result.
Common pound values in kilograms
These are the values people tend to check first: body weight, baggage, gym weights, parcel labels, and common product weights.
| Pounds | Kilograms | Practical reading |
|---|---|---|
| 1 lb | 0.454 kg | Anchor value for checking a formula or spreadsheet. |
| 5 lb | 2.268 kg | Small parcel, pet item, or household package. |
| 10 lb | 4.536 kg | A common shipping and light-equipment checkpoint. |
| 50 lb | 22.680 kg | Often used around baggage, feed bags, and bulk retail items. |
| 100 lb | 45.359 kg | Simple anchor for larger equipment and gym weights. |
| 150 lb | 68.039 kg | Common body-weight example, usually shown as 68.0 kg. |
| 180 lb | 81.647 kg | Useful for fitness, medical, and sports profile conversions. |
| 200 lb | 90.718 kg | Heavy body-weight, freight, and equipment reference. |
If the source weight is small, use pounds to ounces or ounces to grams. If the final output needs to stay in pounds, use kg to lbs instead.
The exact factor matters most when the value moves between systems
A quick estimate can divide pounds by 2.2, but a stored or published value should use the exact factor: 1 lb = 0.45359237 kg. The difference is small on one value and more noticeable when many records are summed or compared.
Pick the nearby converter that matches the next step
Use pounds to grams when the output needs to be a smaller metric unit. Use lbs to stones when the weight is being read in a UK body-weight context. Use pounds to ounces when the source should stay in US customary units.
For a broader comparison across kilograms, grams, pounds, ounces, stones, tons, and tonnes, start from the weight converter hub.
Practical questions about pounds and kilograms
Is 150 lb about 68 kg?
Yes. 150 lb converts to 68.0389 kg, so 68.0 kg is a clean one-decimal display. If the value is for a medical form, gym record, or shipping document, keep the number of decimals required by that form.
Can I divide pounds by 2.2 to get kilograms?
Dividing by 2.2 is fine for a quick estimate, but it is not the exact conversion. The exact relationship is 1 lb = 0.45359237 kg. Use the exact factor when the result will be stored, printed, billed, or compared later.
How do I handle a scale reading like 11 lb 8 oz?
Convert the ounces into part of a pound first. Since 16 oz equals 1 lb, 11 lb 8 oz is 11.5 lb. This page lets you enter pounds and ounces separately so you do not need to do that step by hand.
Should I round kilograms differently for body weight and shipping?
Usually yes. Body weight is often shown to one decimal place, while shipping systems may ask for two or three decimals or may apply their own billing rule. Convert accurately first, then follow the display rule for the form you are filling out.
Are pounds and ounces both weight units?
Yes, in everyday measurement they are both mass units from the avoirdupois system. One pound contains 16 ounces. For food, parcels, and small retail items, ounces may be easier to read than a small decimal pound value.
When should I use kg to lbs instead?
Use kg to lbs when the source number is already metric and the final audience needs pounds. Use this page when the source number starts in pounds and needs to be written in kilograms.