Ml to Tsp

Clinical Pharmacology & Culinary Spoon Standards

The American Academy of Pediatrics (AAP) and US Pharmacopeia define standard medicinal spoons:

• 1 Metric Teaspoon (Hospital Standard): 5.0000 mL = 100 Drops (gtt)

• 1 US Customary Kitchen Teaspoon: 4.9289 mL = (1) / (3) US Tbsp = (1) / (6) US fl oz

Primary Liquid Medication Dosing Equivalents

• 1.25 mL: (1) / (4) tsp

• 2.50 mL: (1) / (2) tsp

• 3.75 mL: (3) / (4) tsp

• 5.00 mL: 1.00 tsp = 1 Metric tsp

• 7.50 mL: 1 (1) / (2) tsp

• 10.00 mL: 2.00 tsp

• 15.00 mL: 3.00 tsp = 1.00 Tbsp

Equations

• Medicinal Teaspoons (tsp) = mL5.0

• Milliliters (mL) = Teaspoons (tsp) × 5.0

How to Use This Calculator

Enter your Volume Value to Convert (e.g. 5.0), Teaspoon Sizing Standard — choose from Metric Medicinal Spoon (5.00 mL / AAP Hospital & Pharmacy Standard), US Customary Teaspoon (4.93 mL / Standard Kitchen Measuring Spoon), and Conversion Direction — choose from Milliliters to Teaspoons (mL → tsp), Teaspoons to Milliliters (tsp → mL). Results update instantly as you type — adjust any value to compare scenarios.

The Formula

Formula Reference: Ml to Tsp

Input variables:

volumeValue — Volume Value to Convert

spoonStandardSelect — Teaspoon Sizing Standard

conversionDirectionSelect — Conversion Direction

Computed outputs:

convertedVolume — Converted Volume

equivalentTeaspoons — Teaspoons (tsp)

formattedFractionalTsp — Formatted Kitchen Spoons

equivalentTablespoons — Tablespoons (Tbsp)

equivalentMilliliters — Volume in Milliliters (mL)

Mathematical relationships extracted from calculation logic:

ml = rawVal * mlPerTsp

drops = ml * 20.0

Standard: NIST Handbook 44 and BIPM SI unit definitions

Worked Example

A doctor prescribing 5.0 mL of liquid antibiotic is instructing a parent to give exactly 1 level teaspoon (or 2.5 mL for half a teaspoon).

Understanding Your Result

Unit conversion precision: round to the same number of significant figures as your original measurement. Converting 6 feet to meters gives 1.8288 m — but if your measurement was approximate (±1 inch), expressing more than 2 decimal places is false precision. For international trade and technical specifications, SI units (meters, kilograms, liters) are the standard. US customary units (feet, pounds, gallons) differ from Imperial UK units: 1 US gallon = 3.785 L vs. 1 UK gallon = 4.546 L.