Kitchen Measurement Conversions — A Complete Guide
Kitchen recipes use a wide variety of measurement systems, and confusion between them is one of the most common cooking mistakes. US recipes use cups (240 ml), tablespoons (15 ml), and teaspoons (5 ml). UK and Australian recipes often use cups of 250 ml. Many European and Asian recipes use grams and milliliters. Knowing how to convert between these systems instantly is essential for anyone who cooks from international recipes.
Quick reference table:
1 tablespoon (Tbsp) = 3 teaspoons = 15 ml
1 US cup = 16 Tbsp = 48 tsp = 240 ml = 8 fl oz
1 UK/AU cup = 250 ml
1 fluid ounce = 29.57 ml
1 US pint = 2 cups = 16 fl oz = 473 ml
Weight of 1 tablespoon (15 ml) by ingredient:
Water: 15 g / Sugar (granulated): ~12 g / All-purpose flour: ~9 g
Salt: ~18 g / Cooking oil: ~14 g / Butter: ~14 g / Honey: ~21 g
For baking, weight measurements (grams) are more accurate than volume. A cup of flour can weigh anywhere from 110 g to 160 g depending on how it was scooped — a 40% difference. Professional bakers always use a kitchen scale. For liquid ingredients, volume is generally accurate enough unless you're working at the gram-level precision of pastry work.
Frequently Asked Questions
A: 1/3 of a US cup (240 ml) = 80 ml = about 5 tablespoons + 1 teaspoon. A common way to measure this without a 1/3 cup measure is to use 5 tablespoons + 1 teaspoon. For 1/4 cup: 4 tablespoons exactly. For 2/3 cup: 10 tablespoons + 2 teaspoons.
A: Yes, roughly. A pinch (three-finger grab) ≈ 1/16 teaspoon (~0.3 ml). A dash ≈ 1/8 teaspoon (~0.6 ml). A smidgen ≈ 1/32 teaspoon. These are used for seasoning where approximate quantities are fine, not for baking where precision matters.
A: Volume measurements are not affected by altitude. However, baking itself is affected — at high altitude, liquids evaporate faster, leavening works more aggressively, and structure sets more quickly. Recipes may need extra liquid, less baking powder, and higher oven temperatures at altitude.