Cold Brew Ratio Calculator

Summary

Enter your desired batch size, pick a ratio (concentrate 1:4 or regular 1:8), and get the exact coffee and water amounts in grams, ounces, or cups.

How it works

1. Enter your target batch size and choose the unit (cups, liters, or fluid ounces).
2. Select a brew style: Concentrate (1:4 coffee-to-water) or Regular (1:8).
3. Choose your preferred method: Immersion (steep in jar) or Slow Drip.
4. The calculator divides the total weight by the ratio to find the coffee weight, then subtracts it to get the water weight.
5. Results are shown in grams, ounces, and cups so you can use a kitchen scale or measuring cups.

Use cases

• Brewing a large batch of cold brew concentrate for the week.
• Scaling a recipe up for a party or meal prep.
• Dialing in a consistent daily single-serve cold brew.
• Converting a recipe between cups, liters, and fluid ounces.
• Comparing concentrate vs. regular brew amounts before shopping.
• Setting up a slow-drip cold brew tower with the right coffee dose.

Frequently Asked Questions