happytails.ai

Rounding Calculator

Open Rounding 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": "rounding",
  "category": "calculators",
  "built": true,
  "requirements": "Decimal places, significant figures and explicit rounding conventions.",
  "implementation": {
    "fields": [
      {
        "key": "value",
        "label": "Value",
        "value": 3.14159,
        "type": "number"
      },
      {
        "key": "places",
        "label": "Decimal places",
        "value": 2,
        "type": "number"
      }
    ],
    "input": false,
    "note": "",
    "live": true,
    "presentation": "metrics",
    "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": "POST /api/v1/tools/rounding/run",
  "api": {
    "id": "rounding",
    "name": "Rounding",
    "category": "calculators",
    "description": "Round a number to a chosen number of decimal places.",
    "notes": "",
    "human_path": "/en/calculators/rounding/",
    "method": "POST",
    "endpoint": "/api/v1/tools/rounding/run",
    "schema_url": "/api/v1/tools/rounding",
    "input_schema": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "input": {
          "type": "string",
          "maxLength": 1000000,
          "default": "",
          "description": "Plain text input. File tools use files instead unless otherwise documented."
        },
        "options": {
          "type": "object",
          "additionalProperties": false,
          "properties": {
            "value": {
              "type": "number",
              "description": "Value",
              "default": 3.14159
            },
            "places": {
              "type": "number",
              "description": "Decimal places",
              "default": 2.0
            }
          }
        }
      }
    },
    "output_schema": {
      "type": "object",
      "required": [
        "tool",
        "result"
      ],
      "properties": {
        "tool": {
          "type": "string"
        },
        "result": {
          "type": "object",
          "required": [
            "text",
            "files"
          ],
          "properties": {
            "text": {
              "type": [
                "string",
                "null"
              ]
            },
            "data": {
              "description": "Parsed JSON when the textual result is JSON."
            },
            "name": {
              "type": "string"
            },
            "mime": {
              "type": "string"
            },
            "files": {
              "type": "array",
              "items": {
                "type": "object",
                "required": [
                  "name",
                  "mime",
                  "bytes",
                  "base64"
                ],
                "properties": {
                  "name": {
                    "type": "string"
                  },
                  "mime": {
                    "type": "string"
                  },
                  "bytes": {
                    "type": "integer"
                  },
                  "base64": {
                    "type": "string",
                    "contentEncoding": "base64"
                  }
                }
              }
            }
          }
        }
      }
    },
    "processing": "Server; same transformation code as browser tools",
    "limits": {
      "request_bytes": 8388608,
      "input_characters": 1000000,
      "files_bytes": 5242880,
      "max_files": 0,
      "timeout_seconds": 12
    }
  },
  "agent_processing": "Server; same transformation code as browser tools",
  "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"
  }
}

Page guide

Round a number to a chosen number of decimal places.

How to use Rounding
  1. Enter the values you want to calculate and choose the relevant units or settings.
  2. The result updates as you type. Adjust the available settings if needed.
  3. Review the result, then use Copy result or a download link when available.

What to expect

Round a number to a chosen number of decimal places. Choose 0 to 15 decimal places. The result preserves the requested trailing zeros. Binary floating-point arithmetic can affect values exactly on a rounding boundary.