Grams to Pounds Converter (g → lb)
Type a weight in grams and get the result in pounds (lb), ounces (oz), and the combined 'X lb Y oz' format used on US food labels and bathroom scales.
| Grams (g) | Pounds (lb) | Ounces (oz) | Kilograms (kg) |
|---|---|---|---|
| 10 | 0.02 | 0.35 | 0.01 |
| 25 | 0.06 | 0.88 | 0.03 |
| 50 | 0.11 | 1.76 | 0.05 |
| 100 | 0.22 | 3.53 | 0.1 |
| 250 | 0.55 | 8.82 | 0.25 |
| 500 | 1.1 | 17.64 | 0.5 |
| 750 | 1.65 | 26.46 | 0.75 |
| 1,000 | 2.2 | 35.27 | 1 |
工作原理
计算公式
lb = g × 0.00220462 oz = g × 0.035274 For pounds and ounces: wholePounds = floor(g × 0.00220462) remainingOz = (g × 0.00220462 − wholePounds) × 16 计算范例
Converting 500 g (a common pack of pasta): 500 × 0.00220462 = 1.10231 lb = 1 lb 1.637 oz = 17.637 oz = 0.5 kg Result shown in the tool: 1 lb (1 lb 1.64 oz)
Grams and Pounds: Two Weight Systems
Grams (g) belong to the metric system — the SI base unit for mass is the kilogram, with the gram being one-thousandth of a kilogram. Pounds (lb) are part of the US Customary / Imperial system, still the default in the United States for body weight, grocery packaging, and dumbbell sets.
The exact conversion factor (international agreement, 1959):
1 pound = 453.59237 grams
Inverting: 1 gram = 0.00220462 pounds
The Pounds + Ounces Format
When something weighs, say, 750 g:
- Convert to decimal pounds: 750 × 0.00220462 = 1.65347 lb
- Whole pounds: 1 lb
- Remaining decimal: 0.65347 × 16 = 10.46 oz
- Result: 1 lb 10.46 oz
US food labels typically show this combined format for anything under 2 kg. Our calculator does this automatically.
Quick Reference Table
| Grams | Pounds (decimal) | Pounds + Ounces | Ounces |
|---|---|---|---|
| 100 g | 0.2205 lb | 0 lb 3.53 oz | 3.527 oz |
| 250 g | 0.5512 lb | 0 lb 8.82 oz | 8.818 oz |
| 500 g | 1.1023 lb | 1 lb 1.64 oz | 17.637 oz |
| 1000 g | 2.2046 lb | 2 lb 3.27 oz | 35.274 oz |
| 2000 g | 4.4092 lb | 4 lb 6.55 oz | 70.548 oz |
Common Use Cases
Cooking and baking: US recipes in cups and ounces vs. European recipes in grams. Use this converter to scale ingredient quantities accurately.
Gym and fitness: Dumbbells and barbells in the US are labelled in pounds. If you’re following a metric strength program, convert your target weight to pounds before loading the bar.
Shipping and e-commerce: International shipping rates use kilograms for base weight. Convert your product’s gram weight to find the shipping cost tier.
Body weight: Medical records in the US use lb and oz for newborns. A 3,500 g (3.5 kg) baby is 7 lb 11 oz — the kind of conversion parents need immediately.
Troy Ounces vs. Avoirdupois Ounces
This calculator uses avoirdupois ounces (the everyday system). Precious metals (gold, silver) use troy ounces:
- 1 avoirdupois oz = 28.3495 g
- 1 troy oz = 31.1035 g
If you’re converting jewellery weights, use the troy ounce figure (troy oz = g ÷ 31.1035).
Common Mistakes
- Confusing oz and troy oz: A 10 g gold ring is 0.3215 troy oz, but 0.3527 avoirdupois oz. The jewellery industry always uses troy.
- Rounding too early: For postal weights where the next bracket means extra cost, carry at least 3 decimal places before rounding up.
- Misreading scale display: Some digital scales cycle through g / oz / lb:oz modes. Always confirm the unit shown before recording.
常见问题
How many pounds is 1000 grams?
1000 g = 1 kg = 2.20462 lb (2 lb 3.27 oz). The exact conversion factor is 1 lb = 453.59237 g, so 1000 ÷ 453.59237 = 2.20462 lb.
What is 250 grams in pounds and ounces?
250 g = 0.55116 lb = 8.818 oz, which you would express as 0 lb 8.82 oz. This is approximately ½ pound, slightly more.
Is a gram bigger than a pound?
No. One pound equals 453.59 grams, so a gram is about 454 times smaller than a pound. One ounce equals 28.35 grams.
Why does my kitchen scale show oz but the recipe uses g?
Most digital kitchen scales can switch between grams, ounces, and pounds. Press the unit button. If your scale only shows oz: multiply grams by 0.035274. For example, 100 g = 3.527 oz.
How accurate is the grams to pounds conversion?
Exact by definition: 1 pound = 453.59237 g (international pound, 1959 standard). The calculation uses full 64-bit precision. For jewellery, use troy ounces (1 troy oz = 31.1035 g), which differ from avoirdupois ounces.
How do I convert lbs back to grams?
Multiply pounds by 453.59237. Example: 2.5 lb × 453.592 = 1133.98 g.