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100g Fresh Blueberries = ⅔ cup

100 grams of fresh blueberries equals ⅔ cup (0.68 US Customary cups, 0.64 Metric 250 mL cups, 159.9 mL, 10.81 tablespoons, or 3.53 oz) when measured loose fill at a verified density of 148g per US Customary cup.

Exact decimal volume: 0.68 US Customary Cups • 0.64 Metric Cups (250 mL) • 10.81 tbsp • 3.53 oz

Batch
Measuring density
Standard: Loose fill148g / cup
Converted Measure
100 g Fresh Blueberries (Loose fill) =
⅔ US Cup
Physical scoop breakdown0.68 cups
1/3 cup
1/3 cup
Edit either side to reverseBlueberries chart →
Grams
100 g
Ounces
3.53 oz
US Cups
⅔ cup
Metric (250mL)
0.64 c
Tablespoons
10.81 tbsp
Milliliters
159.9 mL

Kitchen note: 1 US Customary Cup (236.6 mL) of fresh blueberries (loose fill) weighs 148g, while 1 International Metric Cup (250 mL) weighs 156g.

Batch Scaling Around 100g Fresh Blueberries

Batch scaling conversion table around 100g of Fresh Blueberries (0.5× to 3× recipe batches in grams, ounces, US cups, and milliliters)
Batch Scale Weight (g / oz) US Cups & Spoons Metric (mL)
Half Batch (0.5×) 50g (1.76 oz) ⅓ cup 79.9 mL
Standard (1×) 100g (3.53 oz) ⅔ cup 159.9 mL
1.5× Batch 150g (5.29 oz) 1 cup 239.8 mL
Double Batch (2×) 200g (7.05 oz) 1 ⅓ cups + ¾ tsp 319.7 mL
Triple Batch (3×) 300g (10.58 oz) 2 cups + 1 ¼ tsp 479.6 mL

Measuring 100g of Fresh Blueberries in the Kitchen

Because 1 US Customary Cup (236.6 mL) of fresh blueberries weighs 148g when measured loose fill, 100 Grams (100g) translates to 0.68 US cups (⅔ cup).

Without a kitchen scale, measure ⅔ cup (10.81 tablespoons total) using loose fill technique. Pour dry fresh berries loosely into the cup until flush with the rim. Do not press or crush the berries; standard cultivated round blueberries roll into a natural loose pack weighing 148 grams per cup.

Source note: USDA FoodData Central FDC ID 171711; US Highbush Blueberry Council

Frequently Asked Questions

How many cups is 100 grams of fresh blueberries? ▾

100 grams of fresh blueberries (Loose fill, 148g per US cup) equals ⅔ cup (0.68 US Customary Cups, 0.64 Metric 250 mL cups, or 10.81 tablespoons).

How do I prevent blueberries from sinking to the bottom of muffin tins? ▾

Toss dry blueberries with 1 tablespoon of the recipe's measured flour before gently folding them into the batter.

Can frozen blueberries be used instead of fresh in baking? ▾

Yes, use frozen berries directly without thawing to prevent their purple juice from bleeding throughout the batter.