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How Much Is 150 Teaspoons of Baking Soda in Grams?

150 teaspoons of baking soda weighs 687.50 g. This is based on baking soda having a density of 220g per cup. Because teaspoons measure volume and grams measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 150 teaspoons.

150 teaspoons of baking soda
=
687.50g
Result using all teaspoon standards info
687.50 g (US) 697.40 g (Metric Teaspoon) 825.59 g (Imperial Teaspoon)
150 teaspoons of baking soda is also
687.50

Formula and Step-by-Step

teaspoons × 4.58g/tsp = grams
  1. Start with 150 teaspoons of baking soda
  2. 1 teaspoon of baking soda = 4.58g
  3. 150 × 4.58 = 687.5g

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

Baking powder loses potency over time. If yours is more than 6 months old, test it: drop a teaspoon into hot water. If it bubbles vigorously, it is still active.

Baking Soda at Different Amounts

How baking soda scales across common teaspoons measurements. Your amount (150 teaspoons) is highlighted.

1.5 tsp6.88 g2 tsp9.17 g3 tsp13.75 g4 tsp18.33 g5 tsp22.92 g6 tsp27.5 g8 tsp36.67 g150 tsp687.5 g

For reference, 150 teaspoons of baking soda (687.5g) is close in weight to a basketball (624g).

Other Amounts of Baking Soda

Teaspoons US Grams Metric Teaspoon Imperial Teaspoon
0.25 teaspoons 1.15 g 1.16 g 1.38 g
0.5 teaspoons 2.29 g 2.32 g 2.75 g
1 teaspoon 4.58 g 4.65 g 5.50 g
1.5 teaspoons 6.88 g 6.97 g 8.26 g
2 teaspoons 9.17 g 9.30 g 11.01 g
3 teaspoons 13.75 g 13.95 g 16.51 g
4 teaspoons 18.33 g 18.60 g 22.02 g
5 teaspoons 22.92 g 23.25 g 27.52 g
6 teaspoons 27.50 g 27.90 g 33.02 g
8 teaspoons 36.67 g 37.19 g 44.03 g
150 teaspoons 687.50 g 697.40 g 825.59 g

Understanding the Units

What is a Teaspoon?

A teaspoon (tsp) is a US customary unit of volume equal to 4.929 milliliters or 1/3 of a tablespoon. It is the standard measure for spices, leaveners, extracts, and other small-quantity ingredients.

What is a Gram?

A gram (g) is a metric unit of mass equal to 1/1000 of a kilogram. It is the standard weight measurement for precise baking worldwide. Professional bakers prefer grams because they are more accurate than volume measurements.

Frequently Asked Questions

About 687.50 g, based on baking soda having a density of 220g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of teaspoons by 4.58 (grams per teaspoon for baking soda). For 150 teaspoons: 150 × 4.58 = 687.50 g.
For the most accurate results, weigh baking soda on a kitchen scale. If measuring by volume, spoon the ingredient into the measuring spoon and level it off with a straight edge rather than scooping directly.
Weight-per-cup values vary because of differences in how the ingredient is measured (spooned vs scooped), grind size, moisture content, and settling during storage. Our values use standardized measurement methods from established culinary references.
Reverse the conversion: 687.50 g ÷ 4.58 = 150 teaspoons. Or use the Grams to Teaspoons converter.