Pace calculator

Open Pace calculator on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "id": "pace-calculator",
  "category": "calculators",
  "built": true,
  "requirements": "Enter any two of distance, time and pace to calculate the third. Compare minutes per kilometre and mile, speed in km/h and mph, and a split table with the final partial split. Download all splits as CSV. The calculation assumes constant pace; it does not predict changes from terrain, stops or fatigue.",
  "implementation": {
    "fields": [
      {
        "key": "mode",
        "label": "Calculate",
        "value": "Pace",
        "type": "select",
        "values": [
          "Pace",
          "Time",
          "Distance"
        ]
      },
      {
        "key": "distance",
        "label": "Distance",
        "value": 5,
        "type": "number",
        "step": "any",
        "min": 0,
        "max": 1000000,
        "showWhen": {
          "mode": [
            "Pace",
            "Time"
          ]
        }
      },
      {
        "key": "distanceUnit",
        "label": "Distance unit",
        "value": "km",
        "type": "select",
        "values": [
          "km",
          "mi"
        ],
        "showWhen": {
          "mode": [
            "Pace",
            "Time"
          ]
        }
      },
      {
        "key": "duration",
        "label": "Time",
        "value": "25:00",
        "type": "text",
        "help": "Minutes:seconds or hours:minutes:seconds. For example, 25:00 or 1:25:00.",
        "showWhen": {
          "mode": [
            "Pace",
            "Distance"
          ]
        }
      },
      {
        "key": "pace",
        "label": "Pace",
        "value": "5:00",
        "type": "text",
        "help": "Minutes:seconds per selected unit, for example 5:30.",
        "showWhen": {
          "mode": [
            "Time",
            "Distance"
          ]
        }
      },
      {
        "key": "paceUnit",
        "label": "Pace per",
        "value": "km",
        "type": "select",
        "values": [
          "km",
          "mi"
        ],
        "showWhen": {
          "mode": [
            "Time",
            "Distance"
          ]
        }
      },
      {
        "key": "splitLength",
        "label": "Split length",
        "value": 1,
        "type": "number",
        "step": "any",
        "min": 0,
        "max": 1000000
      },
      {
        "key": "splitUnit",
        "label": "Split unit",
        "value": "km",
        "type": "select",
        "values": [
          "km",
          "mi"
        ]
      }
    ],
    "input": false,
    "live": true,
    "presentation": "metrics",
    "note": "Calculate pace, finish time or distance. Split times assume a steady pace and include the final partial split. Up to 1,000 splits. Use a distance of at least 1 mm and a pace no slower than 24 hours per km. Decimal seconds are accepted. Changing units keeps the entered numbers. Times display to 0.01 seconds. Everything is calculated on your device.",
    "experience": {
      "automatic": true,
      "single": false,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.",
      "helpParts": [
        "Change the input or settings to update your result.",
        "Results update as you type.",
        "Up to 1,000,000 characters."
      ],
      "action": null
    },
    "mode": "automatic",
    "interactive": false
  },
  "execution": "Browser interface",
  "api": null,
  "browser_agent": {
    "supported": true,
    "name": "run_current_tool",
    "discovery": "WebMCP on the human page in a supporting browser",
    "verification": "See audit/API-AUDIT.md; availability is not verification"
  }
}

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