Convert price per gram to price per ounce or back, or find the price per ounce and per gram from a package price and its weight in g, oz, kg or lb.
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Price Per Gram to Price Per Ounce Formula
Convert unit price mode:
From package price mode:
- Price/g — cost of one gram in dollars
- Price/oz — cost of one ounce in dollars
- 28.349523125 — exact grams in one avoirdupois ounce
- Package Price — total dollar cost of the package
- Weight in grams — package net weight converted to grams (oz × 28.349523125, lb × 453.59237, kg × 1000)
The calculator uses the avoirdupois ounce (exactly 28.349523125 g), used for food, retail goods, and most consumer products in the US. It does not support the troy ounce (exactly 31.1034768 g) used for precious metals. The reference tables and worked examples below show rounded mass factors and prices.
Reference Tables
Quick conversion of common per-gram prices to per-ounce equivalents:
| Price per gram | Price per ounce | Price per pound |
|---|---|---|
| $0.01 | $0.28 | $4.54 |
| $0.05 | $1.42 | $22.68 |
| $0.10 | $2.83 | $45.36 |
| $0.25 | $7.09 | $113.40 |
| $0.50 | $14.17 | $226.80 |
| $1.00 | $28.35 | $453.59 |
| $5.00 | $141.75 | $2,267.96 |
Ounce types you may encounter:
| Ounce type | Grams | Used for |
|---|---|---|
| Avoirdupois (oz) | 28.3495 | Food, retail, general use |
| Troy (oz t) | 31.1035 | Gold, silver, platinum |
| Fluid (fl oz) | Volume, not weight | Liquids (do not use here) |
Worked Examples
Example 1: Per gram to per ounce. A spice costs $0.18 per gram. Multiply by 28.3495: $0.18 × 28.3495 = $5.10 per ounce.
Example 2: Per ounce to per gram. Coffee beans are listed at $0.95 per ounce. Divide by 28.3495: $0.95 ÷ 28.3495 = $0.0335 per gram.
Example 3: From a package. A 250 g bag costs $7.49. Per gram: $7.49 ÷ 250 = $0.02996. Per ounce: $0.02996 × 28.3495 = $0.85 per ounce.
Why per-ounce prices look much higher. An ounce is roughly 28 times heavier than a gram, so the per-ounce price is always about 28 times the per-gram price. A small per-gram number is normal for everyday goods.
