Converting between metric and imperial units is a fundamental need in cooking, baking, science, and even precious metal trading. Our precise grams-to-ounces converter tool simplifies this process, delivering fast and exact conversions between these essential units of weight. Whether you're following a recipe with ingredients listed in grams or need to understand jewelry weights in ounces, this tool will ensure you never make a measurement error again.
Grams (g) are the metric unit for small masses, lightweight, everyday measurements like food portions or lab samples. Ounces (oz) belong to imperial/U.S. customary systems and come in two flavors: the common avoirdupois ounce (used for food and household items) and the troy ounce (used for precious metals). For most recipes and everyday use, you’ll want the avoirdupois ounce.
Gram vs. ounce
1 avoirdupois ounce = 28.349523125 grams (commonly rounded to 28.35 g).
1 troy ounce = 31.1034768 grams, important when dealing with gold, silver, or bullion.
Choosing the right ounce type matters: use avoirdupois for recipes and troy for precious metals.
Conversion is straightforward once you have the right constant.
Exact formulas
Grams → Ounces (avoirdupois): ounces = grams ÷ 28.349523125
Ounces → Grams (avoirdupois): grams = ounces × 28.349523125
Troy ounce (precious metals): grams = troy_ounces × 31.1034768
Quick mental estimates
For fast approximations, use 28.35 as the divisor/multiplier: it’s close enough for kitchen work. Examples (rounded reasonably):
50 g ≈ 1.76 oz
100 g ≈ 3.53 oz
200 g ≈ 7.05 oz
7 oz ≈ 198.45 g
Converting grams into pounds and ounces
Because 1 pound = 16 ounces, a two-step approach is easiest: convert grams to ounces, then split ounces into pounds + leftover ounces.
Converting to pounds and ounces (step-by-step)
Example: 600 grams
1. Convert to ounces: 600 ÷ 28.349523125 ≈ 21.1644 oz.
2. Divide by 16 → 21.1644 ÷ 16 = 1 full pound, remainder 21.1644 − 16 = 5.1644 oz.
So, 600 g ≈ 1 lb 5.16 oz.
Small differences matter in baking and bullion trading—choose the right unit and tool.
For cooking, a digital kitchen scale that switches between g and oz is the most dependable tool. If you work with bullion, always convert using troy ounces (31.1034768 g per troy oz).
For quick checks when switching measurement systems, use reputable online tools. For instance, when you need to change distance units, you might use a KM to miles converter; for weights, use a grams↔ounces converter and be certain you’re using avoirdupois vs. troy as appropriate.
Is 200 grams the same as 7 ounces?
Dividing 200 g by 28.349523125 gives approximately 7.05 oz, which is very close to 7 oz, making it acceptable for many recipes; however, for strict precision, you should choose the exact figure.
How do I convert ounces to grams accurately for baking?
Use the exact formula, grams = ounces × 28.349523125, and a scale that supports grams. Avoid volume-to-weight shortcuts (cups → grams) when precision matters.
Is 250 grams equal to 8 ounces?
250 g ÷ 28.349523125 ≈ 8.82 oz, so 250 g is significantly more than 8 oz (8 oz ≈ 226.80 g).
What about converting weights for jewelry and bullion?
Use troy ounces for precious metals: 1 troy oz = 31.1034768 g. Mixing up troy and avoirdupois ounces will create large errors.