Tea Brewing Calculator
Enter your cups and strength; get an exact herb weight, water volume, temperature and steeping time.
Calculator
Tea Serving Calculator
Brewing for a crowd? Scale herb and water precisely for any number of guests and cup sizes.
Multiplying a recipe in your head when you're trying to host is the kind of stress no one needs. This calculator does the scaling for you — enter your guest count and cup size, and it returns exact quantities to prepare.
How to use it
How to use the Tea Serving Calculator
Enter the number of guests and the standard cup size you're serving. The tool scales your herb and water quantities precisely, and flags when you'll need more than one brew batch.
- Enter the number of guests you're serving.
- Select your cup size in millilitres or fluid ounces.
- Choose your herb and preferred strength.
- Read the total herb weight and water volume — split into convenient batch sizes if needed.
For technique when brewing larger quantities, our Herbal Tea Brewing Basics guide covers pot-brewing and decoction methods. You can also use our Tea Brewing Calculator to fine-tune individual batch recipes before scaling up.
The results page also includes a brief timing guide for larger batches. Steeping time stays the same regardless of quantity, but the calculator reminds you to pre-warm large vessels and suggests when to start your brew relative to serving time so every guest gets a cup at the right temperature.
Questions & answers
FAQs — Tea Serving Calculator
The principle is the same — ratio and time. The main practical difference is that large volumes lose heat faster, so steeping in a pre-warmed, insulated vessel keeps the temperature more consistent during the steep.
You can brew and refrigerate most herbal teas a few hours ahead. Remove the herbs before storing so they don't over-steep. Reheat gently — don't re-boil — when you're ready to serve.
A common rule of thumb for events is to prepare enough for 1.5 cups per guest. Simply set the guest count 50% higher than your actual headcount, or scale up using the multiplier in the tool.
Broadly yes, though very large batches of strong herbs like ginger or licorice root can become more intense than expected. When scaling up significantly, brew a small test batch first and taste before committing to the full quantity.