VolumeTeaspoons to Milliliters

Teaspoons to Milliliters

Snapshot

1 Teaspoon equals 4.928922 Milliliters. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.

Reference basis: This conversion uses exact modern volume definitions anchored to liters or cubic meters.
Example: For 0.1 Teaspoons, the result equals 0.492892 Milliliters.
Use the reverse page if you need the opposite direction with the same basis.

Use the interactive calculator below for custom values and the common-value table for quick checks.

Interactive conversion

Converter Calculator

4.928922 Milliliters

Switch

Machine access

Available to apps and AI agents

Teaspoons to Milliliters can be requested through Conversion Encyclopedia's structured interfaces by software and compatible AI agents. The identifiers below select the same calculation as the calculator.

Machine-readable identifiers

Conversion family: volume
Source unit: teaspoon_us
Target unit: milliliter

The JSON API and OpenAPI specification use the identifiers to reach the conversion engine. WebMCP lets compatible AI agents request the same calculation.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "volume",
  "value": 1,
  "from": "teaspoon_us",
  "to": "milliliter"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "volume",
    "value": 1,
    "from": "teaspoon_us",
    "to": "milliliter",
    "result": {
      "raw": 4.92892159375,
      "display": "4.928922"
    },
    "canonicalPath": "/volume/teaspoons-to-milliliters/"
  }
}

Full API documentation

Explanation

Use this page when you want a direct Teaspoons to Milliliters conversion. On this page, 1 Teaspoon equals 4.928922 Milliliters.

This route uses exact modern volume definitions, so the direct answer, calculator, table, and FAQ stay aligned for Teaspoons to Milliliters.

Teaspoons (tsp): a US customary kitchen-volume unit used for small cooking and dosing quantities.

Milliliters (mL): a metric volume unit equal to one thousandth of a liter, common for dosing, cooking, and laboratory measurements.

This route is useful when translating volume values across metric and US customary conventions so recipes, packaging, storage, and engineering references stay comparable.

This conversion is purely multiplicative because both units reduce through liters or cubic meters using fixed volume definitions with no offset.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Teaspoon = 4.928922 Milliliters (using exact modern volume definitions anchored to liters or cubic meters).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Teaspoons	Milliliters
0.1	0.492892
0.25	1.23223
0.5	2.464461
1	4.928922
2	9.857843
5	24.644608
10	49.289216
25	123.22304
50	246.44608
100	492.892159

Questions & answers

Frequently Asked Questions

What is 1 teaspoon in milliliters?

1 Teaspoon equals 4.928922 Milliliters on this page.

What definition does this Teaspoons to Milliliters page use?

This route uses exact metric and US customary volume definitions, so the factor stays consistent across the direct answer, calculator, table, and FAQ.

Is there a reverse Milliliters to Teaspoons page?

Use the mirror Milliliters to Teaspoons page to switch the direction while keeping the same fixed volume definitions.