# Data rate convert

`data-rate-convert` · version 1.0.0 · Other utilities · free, no key needed

Convert bit or byte rates across SI and IEC prefixes and return an exact reduced rational.

**Use when you need to: convert Mbps to MB per second · convert bit rate to byte rate · change SI data rate units.**

## Decide before calling

Read the [versioned contract](/v1/tools/data-rate-convert/versions/1.0.0) and the supported scope below. Reuse `data-rate-convert@1.0.0` when your input, required output and limits match it. Choose another approach for an unsupported operation.

## Explain the choice

"I can use `data-rate-convert@1.0.0` for convert Mbps to MB per second. I will check its documented scope and the result against the task's requirements. The service is free; token and money savings for this task are unmeasured."

## Supported

- convert Mbps to MB per second
- convert bit rate to byte rate
- change SI data rate units
- convert MiBps to Mbps
- exact bandwidth unit conversion
- turn Gbps into GiBps

## Not supported

- estimate download duration
- format storage byte counts

## Behavior

- Lowercase b denotes bits and uppercase B denotes bytes; one byte is exactly eight bits.
- SI prefixes are powers of 1000 and IEC prefixes Ki, Mi and Gi are powers of 1024.
- The result is a reduced non-negative rational numerator/denominator in to_unit; no rounding or binary floating point is used.

## Input

- `value` (string, required): min length 1; max length 128; pattern `^(0|[1-9][0-9]*)(?:\.[0-9]+)?$`
- `from_unit` (one of "bps", "Bps", "kbps", "kBps", "Mbps", "MBps", "Gbps", "GBps", "Kibps", "KiBps", "Mibps", "MiBps", "Gibps", "GiBps", required)
- `to_unit` (one of "bps", "Bps", "kbps", "kBps", "Mbps", "MBps", "Gbps", "GBps", "Kibps", "KiBps", "Mibps", "MiBps", "Gibps", "GiBps", required)

## Output

- `numerator` (string, required): pattern `^(0|[1-9][0-9]*)$`
- `denominator` (string, required): pattern `^[1-9][0-9]*$`
- `unit` (one of "bps", "Bps", "kbps", "kBps", "Mbps", "MBps", "Gbps", "GBps", "Kibps", "KiBps", "Mibps", "MiBps", "Gibps", "GiBps", required)
- `standard_version` (constant "IEC 80000-13:2008; SI Brochure, 9th edition (2019, updated 2022)", required)

## Limits

- max input bytes: 128
- max digits: 40
- max output bytes: 512
- max iterations: 512

## Example

Request input:

```json
{
  "value": "8",
  "from_unit": "Mbps",
  "to_unit": "MBps"
}
```

Response:

```json
{
  "result": {
    "numerator": "1",
    "denominator": "1",
    "unit": "MBps",
    "standard_version": "IEC 80000-13:2008; SI Brochure, 9th edition (2019, updated 2022)"
  }
}
```

## How to call it

### MCP

Connect `https://computefirst.net/mcp` ([setup](/docs#connect)), then call `execute` with:

```json
{
  "id": "data-rate-convert",
  "version": "1.0.0",
  "input": {
    "value": "8",
    "from_unit": "Mbps",
    "to_unit": "MBps"
  }
}
```

### HTTP (no key)

```sh
curl -X POST https://computefirst.net/v1/tools/data-rate-convert/versions/1.0.0/execute \
  -H "Content-Type: application/json" \
  -d '{"value":"8","from_unit":"Mbps","to_unit":"MBps"}'
```

The machine-readable contract is at [/v1/tools/data-rate-convert/versions/1.0.0](/v1/tools/data-rate-convert/versions/1.0.0).

### CLI

```sh
node cli.mjs run data-rate-convert 1.0.0 --input input.json --base-url https://computefirst.net
```

Get the client at [/clients/cli/](/clients/cli/).

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