Cold Brew Ratio Calculator – Mastering the Perfect Cold Brew Ratio

This cold brew ratio calculator takes into account the desired strength of your final brew and determines the precise measurements needed for optimal extraction.

Let’s say you want to make a concentrate that you’ll later dilute:

Input:
- Desired final volume: 1000ml
- Preferred ratio: 1:4 (concentrate)

Calculator output:
- Coffee grounds needed: 250g
- Water required: 1000ml

Cold Brew Ratio Calculator

Desired Volume	Ratio	Coffee Grounds	Water Amount	Brew Style
500ml	1:4	125g	500ml	Concentrate
1L	1:12	83g	1000ml	Ready-to-Drink
2L	1:16	125g	2000ml	Light Brew
1 Gallon	1:8	474g	3790ml	Strong Ready-to-Drink
750ml	1:10	75g	750ml	Mild Brew
1.5L	1:12	125g	1500ml	Medium Brew
3L	1:15	200g	3000ml	Light Brew
16 oz (473ml)	1:8	59g	473ml	Strong Ready-to-Drink
32 oz (946ml)	1:5	189g	946ml	Concentrate
4L (1 Gallon)	1:10	400g	4000ml	Mild Brew
12 oz (355ml)	1:14	25g	355ml	Medium Brew
2 Cups (473ml)	1:12	39.4g	473ml	Ready-to-Drink
8 oz (236ml)	1:16	15g	236ml	Light Brew

Cold Brew Ratio Chart

Brew Style	Coffee : Water Ratio	Strength Level
Concentrate	1:4	Very Strong
Strong Ready-to-Drink	1:8	Strong
Medium Ready-to-Drink	1:12	Medium
Light Ready-to-Drink	1:16	Light

Cold Brew Ratio Formula

The cold brew ratio formula can be expressed as:

Coffee (g) = Water Volume (ml) ÷ Ratio Number

If you want to make cold brew using a 1:12 ratio with 600ml of water:

Coffee needed = 600 ÷ 12 = 50g of coffee grounds

Best Ratio for Cold Brew Coffee

The optimal cold brew ratio typically falls between 1:12 to 1:16 for ready-to-drink cold brew, while concentrate ratios range from 1:4 to 1:8.

The “best” ratio largely depends on your personal taste preferences and intended use.

For a balanced ready-to-drink cold brew:

1:14 ratio
- Coffee: 71g
- Water: 1000ml
Expected result: Smooth, well-balanced cold brew with medium strength

What is the ratio for 16 oz cold brew?

For a 16-ounce (473ml) serving of cold brew, you’ll need to adjust your measurements accordingly.

Using a standard 1:12 ratio:

Water: 16 oz (473ml)
Coffee grounds needed = 473 ÷ 12 = 39.4g (round to 40g)

How much cold brew for 1 gallon of water?

Coffee grounds needed = 3790 ÷ 12 = 316g, when preparing cold brew with one gallon (3.79L) of water, precise measurements become crucial for consistency.

Using a 1:12 ratio:

Water: 1 gallon (3790ml)
Coffee grounds needed = 3790 ÷ 12 = 316g

What is the ratio of cold brew to 32 oz?

Coffee grounds needed = 946 ÷ 12 = 79g, for a 32-ounce (946ml) batch of cold brew, calculate using a standard 1:12 ratio:

Water: 32 oz (946ml)
Coffee grounds needed = 946 ÷ 12 = 79g

What is the Cold brew ratio for 2 cups?

For a 2-cup (473ml) serving, using a 1:12 ratio:

Water: 2 cups (473ml)
Coffee grounds needed = 473 ÷ 12 = 39.4g (round to 40g)

References:

• National Coffee Association USA – https://www.ncausa.org/about-coffee/how-to-brew-coffee
• Specialty Coffee Association – https://sca.coffee/research/coffee-standards

Related Food Calculators: