Bagel Batch Calculator Formula

Understand the math behind the bagel batch calculator. Each variable explained with a worked example.

Use the Bagel Batch Calculator

Formulas Used

Bread Flour (high gluten)

flour = round(flour_g)

Water

water = round(flour_g * 0.5)

Barley Malt Syrup

malt = round(flour_g * 0.03 * 10) / 10

Salt

salt = round(flour_g * 0.02 * 10) / 10

Instant Yeast

yeast = round(flour_g * 0.005 * 10) / 10

Total Dough Weight

total_dough = round(total_dough_g)

Variables

VariableDescriptionDefault
num_bagelsNumber of Bagels8
bagel_weight_gBagel Size110
total_dough_gDerived value= num_bagels * bagel_weight_gcalculated
flour_gDerived value= total_dough_g / 1.585calculated

How It Works

How Bagel Dough Is Calculated

Baker's Percentages for Bagels

Bagel dough is a low-hydration, high-protein dough:

  • Flour: 100% (use high-gluten or bread flour, 12-14% protein)
  • Water: 50-55% (low hydration for dense, chewy texture)
  • Barley malt syrup: 3% (for flavor and browning)
  • Salt: 2%
  • Yeast: 0.5%

    • Bagel Sizes

  • Mini: 85 g (good for sliders or appetizers)
  • Standard: 110 g (classic deli-style)
  • Large: 140 g (bakery/restaurant size)

    • Worked Example

    Make a batch of 8 standard bagels.

    num_bagels = 8bagel_weight_g = 110
    1. 01Total dough = 8 x 110 = 880 g.
    2. 02Flour = 880 / 1.585 = 555 g.
    3. 03Water = 555 x 0.50 = 278 g.
    4. 04Malt = 555 x 0.03 = 16.7 g.
    5. 05Salt = 555 x 0.02 = 11.1 g.
    6. 06Yeast = 555 x 0.005 = 2.8 g.

    Frequently Asked Questions

    Why is bagel dough so low hydration?

    Low hydration (50-55%) creates the dense, chewy texture that defines a bagel. Higher hydration would make a softer, breadier roll instead of a proper bagel.

    Do I have to boil bagels?

    Yes. Boiling in malt-sweetened water for 30-60 seconds per side gelatinizes the surface starch, creating the characteristic shiny, chewy crust. Skip the boil and you get a roll, not a bagel.

    Can I cold-ferment bagel dough?

    Absolutely. Shape the bagels, place on a lined tray, cover, and refrigerate overnight (8-16 hours). Boil and bake straight from the fridge the next morning for better flavor.

    Ready to run the numbers?

    Open Bagel Batch Calculator