Egg Substitution Calculator Formula

Understand the math behind the egg substitution calculator. Each variable explained with a worked example.

Use the Egg Substitution Calculator

Formulas Used

Ground Flax/Chia

flax_tbsp = (sub_type <= 2) * num_eggs * 1

Water

water_tbsp = (sub_type <= 2) * num_eggs * 3 + (sub_type == 5) * num_eggs * 3

Applesauce/Banana

puree_g = ((sub_type == 3) + (sub_type == 4)) * num_eggs * 60

Commercial Replacer

replacer_tsp = (sub_type == 5) * num_eggs * 1.5

Approx. Calories Saved

cal_saved = num_eggs * 35

Variables

VariableDescriptionDefault
num_eggsNumber of Eggs to Replace(eggs)2
sub_typeSubstitution Type1

How It Works

Egg Substitution Guide

Common Substitutes (per 1 egg)

  • Flax egg: 1 tbsp ground flaxseed + 3 tbsp water, rest 5 min
  • Chia egg: 1 tbsp chia seeds + 3 tbsp water, rest 5 min
  • Applesauce: 60 g (1/4 cup) unsweetened
  • Banana: 60 g (1/2 medium) mashed
  • Commercial: Follow package directions

    • When to Use Each

  • Flax/chia: Good for binding in cookies, muffins
  • Applesauce: Adds moisture, good for cakes
  • Banana: Adds sweetness and moisture
  • Commercial: Most versatile

    • Worked Example

    Replace 2 eggs with flax eggs.

    num_eggs = 2sub_type = 1
    1. 01Per egg: 1 tbsp ground flax + 3 tbsp water.
    2. 02For 2 eggs: 2 tbsp ground flax + 6 tbsp water.
    3. 03Mix and let sit for 5 minutes until gel-like.
    4. 04Approximate calories saved: 2 x 35 = 70 kcal.

    Frequently Asked Questions

    Do egg substitutes work in all recipes?

    They work best when eggs serve as binders or add moisture (muffins, cakes, pancakes). They do not work well in recipes where eggs are the main structure (souffles, meringues, custards).

    Can I replace more than 3 eggs?

    Substitutes work best for 1-3 eggs. Beyond that, the texture may be significantly affected. Consider combining different substitutes.

    What is a flax egg?

    Mix 1 tablespoon of ground flaxseed with 3 tablespoons of water and let it sit for 5 minutes. It forms a gel-like consistency similar to egg white.

    Ready to run the numbers?

    Open Egg Substitution Calculator