SNEAK PEEK: Twelve Mornings of Coffee Advent Calendar
Pre-order this season's hottest gift
Limited supply available — Don't miss out ▶
SNEAK PEEK: Twelve Mornings of Coffee Advent Calendar
Pre-order this season's hottest gift
Limited supply available — Don't miss out ▶

Coffee Calculator: Coffee-to-Water Ratio

Maryna Gray Maryna Gray • April 09, 2021

Getting the coffee-water ratio right is the key to a great cup of coffee. But coffee measurement is a confusing topic, and “how much ground coffee per cup” doesn’t have a simple answer. Grams to milliliters? Ounces to grams? How many scoops of coffee? What if I like it strong? Do I need a scale? We built this simple coffee calculator to help you figure out the best coffee-water ratio. 

Coffee Calculator: Coffee-to-Water Ratio

Coffee to use:
measuring cups0.28
ounces2.25
grams63.78
tablespoons4.5
teaspoons13.5
scoops2.25
Water to use:
measuring cups4.5
fluid ounces36
"cup" lines on pot6
milliliters1064.64

Understanding Coffee Measurements 

  • There are two kinds of "cups": the measuring cup you use to make desserts, which holds eight fluid ounces of water, and the coffee cup from which you drink, which holds 6 ounces of coffee. Mugs typically hold a bit more coffee (about 8 ounces). We’ve accounted for those differences as a setting in our coffee calculator.
  • Using a scale can help you be precise about your coffee-to-water ratio, scoops, measuring cups, and spoons work just fine. The reason coffee professionals use a scale is because coffees vary in density and weight. For example, a scoop of light roast will typically weigh more than the same scoop of dark coffee!
  • If you want to up your coffee game, we always recommend a few simple tricks: use filtered water; buy fresh, whole bean coffee; and grind right before you brewFor reference, Bean Box single-serve bags (found in our sampler boxes) brew four to five 6-ounce cups of drip or pour over coffee, and Bean Box 12-ounce bags make 32-plus cups of coffee.

  • Under the hood, the coffee grounds to water ratio is determined by the brew method, with a 16-1 (water to coffee) ratio as the standard for drip or pour over coffee. To brew stronger, use more coffee grounds or less water.

Get Your VIP Pass: Try four coffees hand-picked by a world-class judge! 

Start Tasting Coffees

We want to help you make better coffee at home. Our recommendations are our own, and never sponsored. If you see something you love and buy it through our links, we may receive an affiliate commission (thanks for that!).