VolumeTeaspoons to Milliliters

Teaspoons to Milliliters

Methodology·How We Verify

Snapshot

1 Teaspoon equals 4.928922 Milliliters.

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.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

4.928922 Milliliters

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API and AI agent access

Teaspoons to Milliliters.

Machine-readable identifiers

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

Use these identifiers in the API request. Sources and model limits also apply to software clients.

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/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Multiply teaspoons by 4.92892159375 to convert US teaspoons into milliliters.

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
1/4	1.23223
1/2	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.

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.