Average calculator | Calculate Averages Instantly
Quickly calculate the average of a set of numbers by entering them separated by commas. The Average Calculator displays the mean and calculation steps, ideal for students and data analysis.
What Is an Average Calculator?
Calculate the average (mean) of a set of numbers with our easy-to-use calculator. Support for decimal numbers and advanced statistics.
What Is an Average Calculator?
An average calculator finds the mean of a set of numbers — add them all up and divide by how many there are. It can also help with the median (middle value) and mode (most common value).
Average (Mean) Formula
Mean = (sum of all values) ÷ (number of values)
Example: the average of 10, 20, 30 and 40 → (10 + 20 + 30 + 40) ÷ 4 = 100 ÷ 4 = 25.
Types of Average
| Type | How it works |
|---|---|
| Mean | Sum of values ÷ number of values |
| Median | The middle value when sorted |
| Mode | The most frequent value |
| Weighted mean | Each value × its weight, summed, ÷ total weight |
How to Use
- Enter your numbers in the text area, one per line or comma-separated
- Click "Calculate Average" or press Ctrl + Enter
- View the result and additional information
- Use the copy button to copy the result
Key Features
- Simple and intuitive interface
- Support for decimal numbers and commas
- Additional statistics (count and sum)
- Copy results with one click
Common Use Cases
- Calculate student grades average
- Find mean temperature readings
- Analyze financial data
- Process experimental measurements
Use this tool from your AI agent
Free JSON API and Model Context Protocol (MCP) server. No signup, no API key, CORS open. Designed for Claude, ChatGPT, Cursor, scripts and frontend apps.
curl -X POST https://mate.tools/api/v1/stats.php \
-H "Content-Type: application/json" \
-d '{"numbers":[1,2,3,4,5,6,7,8,9,10]}'import urllib.request, json
req = urllib.request.Request(
"https://mate.tools/api/v1/stats.php",
data=json.dumps({"numbers":[1,2,3,4,5,6,7,8,9,10]}).encode(),
headers={"Content-Type": "application/json"},
)
with urllib.request.urlopen(req) as r:
print(json.load(r))const r = await fetch("https://mate.tools/api/v1/stats.php", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({"numbers":[1,2,3,4,5,6,7,8,9,10]}),
});
console.log(await r.json()); Add to claude_desktop_config.json (Claude Desktop), ~/.cursor/mcp.json (Cursor), or any other MCP-compatible client:
{
"mcpServers": {
"mate-tools": {
"command": "npx",
"args": ["-y", "@mate-tools/mcp-server"]
}
}
}