Tsp to Cups Converter
Convert teaspoons and cups directly in either direction. Choose US or metric / Australian recipe measures, then enter a decimal, fraction, or unit-labeled value.
US customary is the default. Switch to metric / Australian only for a 5 mL teaspoon and 250 mL cup.
Enter a decimal, scientific number, simple or mixed fraction, or Unicode fraction. A pasted unit or system label overrides the menus.
US teaspoons to cups conversion chart
| US teaspoons | US cups |
|---|---|
| 1 | 1/48 |
| 2 | 1/24 |
| 3 | 1/16 |
| 4 | 1/12 |
| 6 | 1/8 |
| 8 | 1/6 |
| 12 | 1/4 |
| 16 | 1/3 |
| 24 | 1/2 |
| 48 | 1 |
Divide US teaspoons by 48
US cups = US teaspoons ÷ 48. For example, 12 teaspoons is exactly 1/4 cup, 24 teaspoons is 1/2 cup, and 48 teaspoons is 1 cup.
Multiply US cups by 48
US teaspoons = US cups × 48. Select Cups or paste a cup label to reverse the direction. Swap carries the exact, unrounded fraction into the next calculation.
Metric and Australian recipe measures
A metric or Australian measuring teaspoon is 5 mL and the cup used here is 250 mL, so there are exactly 50 teaspoons per cup. Keep the selected system consistent: a US customary cup and a 250 mL metric cup are different physical capacities.
Fractions, labels, and boundaries
The converter accepts decimals, scientific notation, simple fractions such as 3/4, mixed numbers such as 1 1/2, and Unicode fractions such as 1½. A pasted tsp or cup unit changes the direction, and a written US, metric, or Australian label changes the system.
This is a volume converter. It does not convert ingredients to grams, estimate density, interpret household spoons, or provide medication dosing.
Frequently asked questions
How many teaspoons are in a US cup?
There are exactly 48 US teaspoons in 1 US customary cup. Divide teaspoons by 48 to get US cups.
How many teaspoons are in a metric or Australian cup?
A 250 mL metric or Australian cup contains 50 measuring teaspoons of 5 mL each. Choose the metric / Australian system before converting.
How do I convert cups to teaspoons?
Multiply cups by 48 for US customary measure or by 50 for a 250 mL metric / Australian cup. You can select Cups, paste a cup label, or use Swap.
Can I enter fractions?
Yes. Enter decimals, simple fractions, mixed numbers, or Unicode fractions such as ½. The exact fraction remains visible beside the decimal.
Can this convert teaspoons to grams?
No. Grams measure mass, so that conversion depends on the ingredient and its density. This page only converts volume within one selected recipe system.