How Much Is 3 Teaspoons of Buttermilk in Ounces?

3 teaspoons of buttermilk equals 0.54 oz. Buttermilk has a density of 245g per cup (5.10g per teaspoon), which means it's relatively light compared to other common cooking ingredients. For comparison, 3 teaspoons of honey would be 0.75 oz.

3 teaspoons of buttermilk
=
0.54oz
Result using all teaspoon standards info
0.54 oz (US) 0.55 oz (Metric Teaspoon) 0.65 oz (Imperial Teaspoon)
3 teaspoons of buttermilk is also
0.54

Formula and Step-by-Step

teaspoons × 5.10g/tsp ÷ 28.3495g/oz = ounces
  1. Start with 3 teaspoons of buttermilk
  2. 1 teaspoon of buttermilk = 5.10g
  3. 3 × 5.10 = 15.31g
  4. Convert grams to ounces: 15.31 ÷ 28.3495 = 0.54 oz

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

Liquid densities vary: oils weigh less per cup than water, while syrups and honey weigh more. This is why ingredient-specific conversions matter even for liquids.

Buttermilk at Different Amounts

How buttermilk scales across common teaspoons measurements. Your amount (3 teaspoons) is highlighted.

0.5 tsp0.09 oz1 tsp0.18 oz1.5 tsp0.27 oz2 tsp0.36 oz3 tsp0.54 oz4 tsp0.72 oz5 tsp0.90 oz6 tsp1.08 oz

Other Amounts of Buttermilk

Teaspoons US Ounces Metric Teaspoon Imperial Teaspoon
0.25 teaspoons 0.05 oz 0.05 oz 0.05 oz
0.5 teaspoons 0.09 oz 0.09 oz 0.11 oz
1 teaspoon 0.18 oz 0.18 oz 0.22 oz
1.5 teaspoons 0.27 oz 0.27 oz 0.32 oz
2 teaspoons 0.36 oz 0.37 oz 0.43 oz
3 teaspoons 0.54 oz 0.55 oz 0.65 oz
4 teaspoons 0.72 oz 0.73 oz 0.86 oz
5 teaspoons 0.90 oz 0.91 oz 1.08 oz
6 teaspoons 1.08 oz 1.10 oz 1.30 oz
8 teaspoons 1.44 oz 1.46 oz 1.73 oz

Understanding the Units

What is a Teaspoon?

A US teaspoon is 4.929 ml, a metric teaspoon is exactly 5 ml, and an imperial teaspoon is 5.919 ml. The metric and US versions are nearly identical (1.4% difference), but the imperial teaspoon is 20% larger. For most spices the difference is negligible, but for leaveners like baking powder it can affect the result.

What is an Ounce?

Ounces are commonly used in US recipes for cheese, meat, chocolate, and other ingredients sold by weight. Many kitchen scales offer both gram and ounce readings.

Frequently Asked Questions

About 0.54 oz, based on buttermilk having a density of 245g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of teaspoons by 5.10 (grams per teaspoon for buttermilk), then divide by 28.3495 to convert grams to ounces. For 3 teaspoons: 3 × 5.10 = 15.31g, then 15.31 ÷ 28.3495 = 0.54 oz.
For the most accurate results, weigh buttermilk on a kitchen scale. If measuring by volume, use a liquid measuring spoon on a flat surface and read the level at eye height.
Temperature has a minimal effect on most cooking liquids. The density of buttermilk changes slightly with temperature, but the difference is usually less than 1-2% between refrigerator and room temperature. This conversion assumes room temperature.