Self-Rising Flour Calculator — Baking Powder & Salt
Out of self-rising flour? Just enter how many cups of all-purpose (plain) flour your recipe calls for and the calculator tells you exactly how much baking powder and salt to add — both in teaspoons and grams.
cups
Level teaspoons — 1.5 tsp per cup of flour
- 1
Cups of flour
2 - 2
Salt to add
2 × 0.25 tsp/cup = 0.5 - 3
Baking powder to add
2 × 1.5 tsp/cup = 3
How does this calculator work?
Add 1½ teaspoons of baking powder and ¼ teaspoon of salt per cup of all-purpose flour to make self-rising flour. Enter the number of cups in this calculator to get the precise amounts in teaspoons and grams for any recipe size.
Formula
How this is calculated
Self-rising flour is simply all-purpose flour pre-mixed with a leavening agent (baking powder) and a pinch of salt. The standard ratio used by most culinary authorities is 1½ teaspoons of baking powder and ¼ teaspoon of fine salt per cup of all-purpose flour. Multiply both by the number of cups you need and sift them together for an even mix.
This calculator uses that ratio directly and converts the result to grams as well (1 tsp baking powder ≈ 4 g; 1 tsp salt ≈ 6 g; 1 cup AP flour ≈ 120 g). Weight measurements are approximate because density varies by brand and how tightly the flour is packed — for precision baking, always weigh flour on a scale rather than scooping. Do not add extra baking powder or salt on top of the substituted mixture; the added amounts already account for both.
Frequently asked questions
Not directly — baking soda is about 3× stronger than baking powder and needs an acid to activate. If you only have baking soda, use ½ tsp per cup plus an acid (like ½ tsp cream of tartar or 1 tsp lemon juice), but the standard substitute is baking powder.
Use fine table salt. Coarse or flaky salt measures differently by volume; if your recipe specifies kosher or sea salt, convert to table-salt equivalent (roughly ½ tsp kosher ≈ ¼ tsp table salt, though this varies by brand).
Baking powder loses potency over time. Use the mixture within 6 weeks, stored in an airtight container away from moisture, and test by dropping ½ tsp into hot water — it should bubble vigorously.
Also known as
TG we-Calculate Editorial Team. (2026). Self-Rising Flour Calculator — Baking Powder & Salt [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/self-rising-flour-calculator
TG we-Calculate Editorial Team. "Self-Rising Flour Calculator — Baking Powder & Salt." TG we-Calculate. 2026. https://we-calculate.com/calculator/self-rising-flour-calculator.
TG we-Calculate Editorial Team, "Self-Rising Flour Calculator — Baking Powder & Salt," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/self-rising-flour-calculator
@misc{wecalculate_self_rising_flour_calculator, title = {Self-Rising Flour Calculator — Baking Powder & Salt}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/self-rising-flour-calculator}}, year = {2026}, note = {TG we-Calculate} }
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