Self-Raising Flour Calculator

This self raising flour calculator is a handy tool that helps bakers determine the correct proportions of plain flour and leavening agents to create self-rising flour.

Homemade Self-Rising Flour: To make your own, mix:

• 100g plain or all-purpose flour
• 1 tsp baking powder (approximately 5g) for every 100g of flour.
• For every 100g of plain flour, add 5g of baking powder (1 tsp) to create self-raising flour.

For 2 cups of self-raising flour, you need:

• All-purpose flour: 1.84 cups
• Baking Powder: 3.67 tsp (about 1 tbsp + ⅔ tsp)
• Salt: 0.46 tsp (approximately ½ tsp).

Self Raising Flour Calculator

Plain Flour	Baking Powder	Salt	Cups of Plain Flour
100g	1 1/3 tsp	1/6 tsp	0.67 cups (approx.)
250g	3 1/3 tsp	1/2 tsp	1.67 cups (approx.)
500g	6 2/3 tsp	1 tsp	3.33 cups (approx.)
750g	10 tsp	1 1/2 tsp	5 cups (approx.)
1000g (1kg)	13 1/3 tsp	2 tsp	6.67 cups (approx.)

Self Raising Flour Formula

The self-raising flour formula is straightforward:

Self-raising flour = Plain flour + Baking powder + Salt

Typically, the ratio is:

• 1 cup (150g) plain flour
• 1 1/2 teaspoons (7.5g) baking powder
• 1/4 teaspoon (1.5g) salt

To make 3 cups of self-raising flour, you would use:

• 3 cups (450g) plain flour
• 4 1/2 teaspoons (22.5g) baking powder
• 3/4 teaspoon (4.5g) salt

How do you calculate self-raising flour?

The general rule of thumb is to add 2 teaspoons (10g) of baking powder for every 150g of plain flour.

To calculate:

• Measure the amount of plain flour needed.
• Divide the flour weight by 150.
• Multiply the result by 2 to get the teaspoons of baking powder required.
• Add a pinch of salt (approximately 1/4 teaspoon per cup of flour).

For 375g of plain flour:

375 ÷ 150 = 2.5

2.5 × 2 = 5 teaspoons of baking powder.

Add 5/8 teaspoon of salt (2.5 × 1/4).

How much baking powder for 250g flour?

You would add 3 1/3 teaspoons (about 16.7g) of baking powder to 250g of plain flour

To determine the amount of baking powder needed for 250g of flour:

250 ÷ 150 = 1.67

1.67 × 2 = 3.34 teaspoons of baking powder.

Rounding to a practical measurement, you would add 3 1/3 teaspoons (about 16.7g) of baking powder to 250g of plain flour. Additionally, include approximately 1/2 teaspoon of salt for flavor balance.

How do I convert plain flour to self-raising flour?

• Measure your plain flour.
• For every cup (150g) of plain flour, add 1 1/2 teaspoons of baking powder.
• Add 1/4 teaspoon of salt per cup of flour.
• Sift the mixture thoroughly to ensure even distribution.

To convert 2 cups (300g) of plain flour:

2 cups (300g) plain flour

3 teaspoons (15g) baking powder

1/2 teaspoon (3g) salt

What is 1 cup of self-raising flour?

One cup of self-raising flour typically equates to:

• 1 cup (150g) plain flour
• 1 1/2 teaspoons (7.5g) baking powder
• 1/4 teaspoon (1.5g) salt

In the US, 1 cup is about 120g of flour, while in the UK and Australia, it’s closer to 150g. Always check your recipe’s origin to ensure accurate measurements.

What is the flour to self-raising ratio?

The standard flour to self-raising ratio is:

100 parts flour : 1 part baking powder : 0.25 parts salt

• 1 cup (150g) plain flour
• 1 1/2 teaspoons (7.5g) baking powder
• 1/4 teaspoon (1.5g) salt

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