Pounds to Grams (lbs to g) Converter

Pounds to Grams Conversion

Pounds are imperial and grams are metric, so this converter brings US weights into precise metric values. It is essential for scientific work, international shipping, and exact measurements.

Conversion formula: 1 lb = 453.592 g — multiply pounds by 453.592.

When You Need This

Scientific work — measurements use grams
International shipping — converting US weights to metric
Precise cooking — gram-accurate ingredient amounts
Lab & research — sample masses in grams
Coffee roasting — batches priced in lb, dosed in g

How to Convert

The Conversion Formula

One pound equals exactly 453.59237 grams. To convert, multiply pounds by 453.592. For a rough estimate, multiply by 454. To reverse, divide grams by 453.592.

grams = pounds × 453.592 — for example, 2 lb × 453.592 ≈ 907.2 g.

Using the Tool

Enter the value

Type the amount you want to convert into the input field.

Read the result instantly

The converted value appears immediately in the second field — no button to press.

Swap or pick any unit

Press the swap button to reverse direction, or open a dropdown to choose a different unit.

Copy the result

Tap the copy icon next to either field to copy the value for your records.

Worked Examples

Pounds	Calculation	Grams
0.5 lb	`0.5 × 453.592`	226.80 g
1 lb	`1 × 453.592`	453.59 g
2 lb	`2 × 453.592`	907.18 g
5 lb	`5 × 453.592`	2267.96 g

Features & Use Cases

Tool Capabilities

Instant Two-Way Conversion

Results update as you type. Use the swap button to reverse the direction in one click.

Any Unit, Any Pair

Searchable dropdowns let you switch to grams, ounces, pounds, stone, tons, carats and more — not just the default pair.

Copy & Quick Reference

Copy either value with one tap, and check the built-in reference table for common conversions at a glance.

Common Use Cases

Scientific Precision

Lab protocols use grams. Convert pound quantities to grams for accurate measurement and reproducible results.

International Shipping

Customs and metric-country carriers expect grams. Convert pound weights for accurate declarations abroad.

Precise Cooking

Serious baking measures in grams. Convert a pound of flour or sugar to grams for consistent, repeatable bakes.

Coffee Roasting

Green coffee is bought in pounds but roasted in gram batches. Convert to plan precise roast loads.

Runs in your browser: All calculations happen locally on your device. Nothing is uploaded — fast and private.

Frequently Asked Questions

How many grams are in a pound?

One pound equals 453.59237 grams, usually rounded to 453.6 g.

How do I convert 2 pounds to grams?

Multiply by 453.592: 2 × 453.592 ≈ 907.2 g.

Is 1 lb the same as 454 g?

Almost. The exact value is 453.6 g; 454 is a convenient rounding for quick math.

Why use grams instead of pounds?

Grams give finer precision for recipes, lab work, and science where fractions of a pound are hard to measure.

How many grams is half a pound?

Half a pound (8 oz) is about 226.8 g.

Does this use the international pound?

Yes. The international avoirdupois pound is defined as exactly 453.59237 g.

Pounds to Grams