Ounces to Grams converter
Quick reference
About weight units
Metric weight runs from milligrams to kilograms in factors of a thousand, while the US customary system uses ounces (16 to a pound) and pounds. The exact bridge: one pound equals 0.45359237 kilograms, fixed by definition since 1959. Stone (14 pounds) survives mainly in British body-weight talk. Cooks converting recipes and travelers reading foreign scales are the everyday users; for precious metals, note these are avoirdupois ounces, not the troy ounces used for gold.
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Frequently asked questions
What is the exact formula for Ounces to Grams?
Multiply the Ounces value by 28.34952313. This comes from the exact unit definitions, not a rounded approximation.
Is this conversion exact?
The underlying ratio is exact where a legal definition exists (for example, 1 inch = 25.4 mm exactly). Displayed results are rounded to six decimal places for readability.
Can I convert Grams back to Ounces?
Yes. Use the reverse converter linked below, or just swap which field you type into: the live converter recalculates either direction.