Convert mL to teaspoons (metric and US) with medicine dosage reference and cooking ingredient weight table. Includes tbsp, fl oz, cups, and drops.
The teaspoon is the most familiar small-volume measurement in both cooking and medicine. The metric teaspoon is exactly 5 mL, while the US customary teaspoon is 4.93 mL—close enough for cooking but potentially significant when dosing medication. This converter handles both standards and reveals the difference.
This Milliliters to Teaspoons Converter works bidirectionally and displays results in eight units: teaspoons (both metric and US), tablespoons, milliliters, fluid ounces, cups, drops, and liters. Preset buttons cover common volumes from 1 mL to 30 mL for quick reference.
A medicine dosage reference table shows standard doses from infant drops to full cups, and a cooking ingredient weight table lists the grams-per-teaspoon for nine common ingredients, providing practical context for both healthcare and culinary applications. It also helps users compare dosing and recipe values without switching between multiple measurement charts. Check the example with realistic values before reporting. Use the steps shown to verify rounding and units. Cross-check this output using a known reference case.
The teaspoon-to-milliliter conversion is crucial for medication dosing (especially pediatric) and cooking precision. Kitchen teaspoons are notoriously inaccurate, and the metric/US difference adds confusion.
This converter provides standard dosage references and ingredient weights, making it a practical daily tool for parents, caregivers, and home cooks. It reduces guesswork and improves consistency when small-volume accuracy really matters.
Metric: 1 tsp = 5 mL (exact) US: 1 tsp = 4.92892 mL 3 tsp = 1 tbsp 6 tsp = 1 fl oz 48 tsp = 1 cup (US)
Result: 2 metric tsp = 2.03 US tsp = 0.67 tbsp
10 mL ÷ 5 = 2 metric teaspoons. This is a common "double dose" for liquid medications like cough syrup. It equals about ⅔ of a tablespoon.
The 5 mL teaspoon has been the standard dosing unit for liquid medications since the metric standardization of medicine. However, studies show that 40-70% of parents make dosing errors when using kitchen spoons. The AAP recommends using milliliter-marked syringes for all pediatric liquid medications, and many pharmacies have stopped including teaspoons on dosing labels.
In professional kitchens, teaspoons are used primarily for small quantities of spices, extracts, and leavening agents. The weight of a teaspoon varies dramatically by ingredient: a teaspoon of dried oregano weighs 1 gram, while a teaspoon of honey weighs 7 grams. This 700% variation is why professional recipes specify weight, not volume.
Standardized measuring spoons became common in the late 19th century, driven by Fannie Farmer's "Boston Cooking-School Cook Book" (1896), which advocated precise measurements over the "pinch" and "handful" estimates common in earlier recipes. Today's measuring spoons are calibrated to either 5 mL (metric) or 4.93 mL (US) per teaspoon.
Metric: exactly 5 mL. US: 4.93 mL. For medicine, always use 5 mL (the metric standard on dosing cups and oral syringes).
No. Kitchen teaspoons vary from 2.5 to 7 mL. Always use a calibrated dosing cup, oral syringe, or measuring spoon for medication.
No. A teaspoon of fine salt weighs about 6 g, while a teaspoon of sugar weighs about 4.2 g—a 43% difference. Weight depends on density and granule size.
The US teaspoon derives from the US customary system (1/48 of a cup = 4.93 mL). The metric teaspoon was rounded to exactly 5 mL for simplicity.
Use a ½ tsp measuring spoon (2.5 mL) or measure 2.5 mL with an oral syringe. Do not estimate by filling a teaspoon halfway—it is unreliable.
"tsp" is the abbreviation for teaspoon. "Tbsp" or "T" is tablespoon. Always capitalize Tbsp to distinguish from tsp.