Tea Brewing Calculator
Enter your cups and strength; get an exact herb weight, water volume, temperature and steeping time.
Calculator
Tea-to-Water Ratio Calculator
Dial in the perfect herb-to-water ratio for any vessel — from a single mug to a party urn.
Ratio is the foundation of every good brew. Too little herb and the cup tastes thin; too much and it turns bitter or overwhelming.
Enter your vessel size, choose your herb type, and this calculator returns the exact weight and volume you need — every time.
How to use it
How to use the Tea-to-Water Ratio Calculator
Tell the tool your vessel capacity and the botanical you're using, and it converts that into a precise ratio in both grams and teaspoons, scaled to any quantity.
- Enter your vessel capacity in millilitres or fluid ounces.
- Select or search for your botanical type.
- Read your ratio — grams of herb per millilitre of water.
- Scale up or down using the multiplier to match your brew volume.
Once your ratio is set, pair it with a steep time from our Herbal Tea Brewing Basics guide. If you're converting between teaspoons and grams for loose-leaf herbs, our Loose Leaf Calculator handles that step too.
The calculator also supports batch conversions. If you are scaling up from a single-cup recipe to a full pot or a large serving vessel, enter the target volume and the tool recalculates the ratio while keeping the flavour balance consistent. Results display in both metric and imperial units.
Questions & answers
FAQs — Tea-to-Water Ratio Calculator
Plant parts vary enormously in density and flavour concentration. A teaspoon of dense fennel seeds weighs much more than a teaspoon of fluffy chamomile flowers — so volume-based ratios can mislead. Weight-based ratios are more reliable.
Yes, with an adjustment. Cold-brew infusion is slower, so most herbalists increase the ratio by about 50% and extend the steep to several hours or overnight in the refrigerator.
A reliable baseline is around 2–3 g of dried herb per 240 ml of water. The calculator refines this based on the specific botanical type you choose.
For a second infusion, the herb has already released much of its character. You can use the same quantity but increase the steep time to draw out what remains.