This page tackles the question “How many cups is 680 grams?” and shows that the result varies with which ingredient you are weighing. For instance, 680 g of water works out to roughly 2.83 cups, 680 g of granulated sugar is around 3.33 cups, and 680 g of all-purpose flour is close to 4.97 cups. The interactive 680 grams to cups calculator above lets you set both the ingredient and the weight so you can quickly match recipe quantities, meal-prep plans, or nutrition labels.
How the 680 grams to cups calculation works
Turning grams (g) into cups means converting a mass measure into a volume measure. To do that correctly, you need the ingredient’s density (how many grams fit into 1 mL) and the volume of a measuring cup. Here we assume a US measuring cup of 240 mL.
The calculator follows this basic approach:
- mL = grams ÷ density (g/mL)
- cups = mL ÷ 240 (for a 240 mL US cup)
For water-like liquids, the density is near 1 g/mL, so 240 mL weighs about 240 g and 680 g ends up a bit under three cups. Lighter ingredients such as flour and cocoa have a lower density, so the same 680 g occupies more cup volume. Denser items such as table salt, honey, and packed brown sugar have a higher density and therefore require fewer cups for 680 grams.
All numbers here use commonly accepted kitchen densities and assume level (not heaping) cups. Brand, grind, humidity, and how you fill the cup (scooping vs. spooning and levelling) can all shift the true value slightly, so treat these as practical approximations rather than laboratory measurements.
Exact 680 grams to cups values for common ingredients
The table below uses typical densities and a 240 mL US cup. It shows about how many cups you need for 340 g and 680 g of each ingredient, plus how many grams are in a full 1 cup.
| Ingredient | Approx. density (g/mL) | 340 g (cups) | 680 g (cups) | 1 cup (g) |
|---|---|---|---|---|
| Water | ≈ 1.00 | ≈ 1.42 | ≈ 2.83 | ≈ 240 g |
| Milk (whole) | ≈ 1.04 | ≈ 1.36 | ≈ 2.72 | ≈ 249.6 g |
| Granulated sugar | ≈ 0.85 | ≈ 1.67 | ≈ 3.33 | ≈ 204 g |
| Brown sugar (packed) | ≈ 0.89 | ≈ 1.59 | ≈ 3.18 | ≈ 213.6 g |
| All-purpose flour | ≈ 0.57 | ≈ 2.48 | ≈ 4.97 | ≈ 136.8 g |
| Cocoa powder (unsweetened) | ≈ 0.53 | ≈ 2.67 | ≈ 5.34 | ≈ 127.2 g |
| Butter | ≈ 0.96 | ≈ 1.48 | ≈ 2.95 | ≈ 230.4 g |
| Vegetable oil | ≈ 0.92 | ≈ 1.54 | ≈ 3.08 | ≈ 220.8 g |
| Olive oil | ≈ 0.91 | ≈ 1.56 | ≈ 3.11 | ≈ 218.4 g |
| Table salt | ≈ 1.20 | ≈ 1.18 | ≈ 2.36 | ≈ 288 g |
| Honey | ≈ 1.42 | ≈ 1.00 | ≈ 2.00 | ≈ 340.8 g |
| Peanut butter | ≈ 0.94 | ≈ 1.51 | ≈ 3.01 | ≈ 225.6 g |
For everyday cooking and baking, these values are usually precise enough to move between grams and cups when a scale is not available. For very sensitive recipes or strict macro tracking, weighing in grams is best, and you can use these figures as a useful starting point for fine-tuning your own kitchen conversions.
When to convert 680 grams to cups (and when to stay in grams)
Volume measures like cups are familiar and quick to use, but they can change with packing and scooping technique. Converting 680 grams to cups is especially handy when:
- You have a recipe written in grams but only measuring cups in your kitchen.
- You are scaling a recipe that calls for “680 g of X” (or similar amounts) and want to estimate it with cups instead.
- You are logging food where the app expects cups, but your package lists nutrition per 100 g or 680 g.
For precise baking or detailed nutrition work, staying in grams is usually more reliable. Use this page when you need a fast, ingredient-aware estimate of how many cups correspond to 680 grams or any other weight you enter into the calculator.
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