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100g Baking Soda / Sodium Bicarbonate = ⅓ cup + 1 tbsp + 2 ¾ tsp

100 grams of baking soda / sodium bicarbonate equals ⅓ cup + 1 tbsp + 2 ¾ tsp (0.45 US Customary cups, 0.43 Metric 250 mL cups, 107.5 mL, 7.27 tablespoons, or 3.53 oz) when measured dip and sweep at a verified density of 220g per US Customary cup.

Exact decimal volume: 0.45 US Customary Cups • 0.43 Metric Cups (250 mL) • 7.27 tbsp • 3.53 oz

Batch
Measuring density
Standard: Dip and sweep220g / cup
Converted Measure
100 g Baking Soda / Sodium Bicarbonate (Dip and sweep) =
⅓ US Cup + 1 tbsp + 2 ¾ tsp
Physical scoop breakdown0.45 cups
1/3 cup
1 tbsp
2 ¾ tsp
Edit either side to reverseBaking Soda chart →
Grams
100 g
Ounces
3.53 oz
US Cups
⅓ cup + 1 tbsp + 2 ¾ tsp
Metric (250mL)
0.43 c
Tablespoons
7.27 tbsp
Milliliters
107.5 mL

Kitchen note: 1 US Customary Cup (236.6 mL) of baking soda / sodium bicarbonate (dip and sweep) weighs 220g, while 1 International Metric Cup (250 mL) weighs 232g.

Batch Scaling Around 100g Baking Soda / Sodium Bicarbonate

Batch scaling conversion table around 100g of Baking Soda / Sodium Bicarbonate (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) 3 tbsp + 2 tsp 53.8 mL
Standard (1×) 100g (3.53 oz) ⅓ cup + 1 tbsp + 2 ¾ tsp 107.5 mL
1.5× Batch 150g (5.29 oz) ⅔ cup 161.3 mL
Double Batch (2×) 200g (7.05 oz) ¾ cup + 2 tbsp + 1 ¾ tsp 215.1 mL
Triple Batch (3×) 300g (10.58 oz) 1 ⅓ cups + 1 ½ tsp 322.6 mL

Measuring 100g of Baking Soda / Sodium Bicarbonate in the Kitchen

Because 1 US Customary Cup (236.6 mL) of baking soda / sodium bicarbonate weighs 220g when measured dip and sweep, 100 Grams (100g) translates to 0.45 US cups (⅓ cup + 1 tbsp + 2 ¾ tsp).

Without a kitchen scale, measure ⅓ cup + 1 tbsp + 2 ¾ tsp (7.27 tablespoons total) using dip and sweep technique. Dip measuring spoon or cup into the container and scrape flush against the box edge. Sodium bicarbonate is a pure mineral salt that is noticeably denser than baking powder, weighing 220 grams per cup (14g per tablespoon, 4.6g per teaspoon).

Source note: USDA FoodData Central FDC ID 172811; Church & Dwight Arm & Hammer Chemical Specs

Frequently Asked Questions

How many cups is 100 grams of baking soda / sodium bicarbonate? ▾

100 grams of baking soda / sodium bicarbonate (Dip and sweep, 220g per US cup) equals ⅓ cup + 1 tbsp + 2 ¾ tsp (0.45 US Customary Cups, 0.43 Metric 250 mL cups, or 7.27 tablespoons).

Why is baking soda stronger than baking powder? ▾

Baking soda is 100% pure sodium bicarbonate, whereas baking powder is diluted with monocalcium phosphate acid salts and cornstarch filler.

How do I test if baking soda is still active? ▾

Drop 1/2 teaspoon into a tablespoon of distilled vinegar; rapid, foaming effervescence confirms strong leavening potency.