{
  "slug": "business-days",
  "title": "Business Days Calculator",
  "heading": "Business Days Calculator",
  "category": "other",
  "url": "https://www.revenuelab.fyi/toolbox/business-days",
  "summary": "Count working days between dates, excluding weekends and holidays.",
  "description": "Contract turnaround, SLA windows, and payroll cutoffs all run on business days. Subtract your company holidays to get the number teams actually plan against.",
  "formula": "Business days = Total days − weekends − holidays.",
  "dateModified": "2026-09-30",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=business-days",
  "inputs": [
    {
      "id": "start",
      "label": "Start date",
      "kind": "date",
      "hint": null,
      "default": null
    },
    {
      "id": "end",
      "label": "End date",
      "kind": "date",
      "hint": null,
      "default": null
    },
    {
      "id": "holidays",
      "label": "Holidays in the range",
      "kind": "number",
      "hint": null,
      "default": 0,
      "unit": null,
      "min": 0,
      "max": 40
    },
    {
      "id": "hoursPerDay",
      "label": "Working hours per day",
      "kind": "number",
      "hint": null,
      "default": 8,
      "unit": null,
      "min": 1,
      "max": 24
    }
  ],
  "outputs": [
    {
      "id": "net",
      "label": "Working days",
      "format": "number",
      "hint": null,
      "primary": true
    },
    {
      "id": "hours",
      "label": "Working hours",
      "format": "decimal",
      "hint": null,
      "primary": false
    },
    {
      "id": "business",
      "label": "Weekdays before holidays",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "weekend",
      "label": "Weekend days",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "days",
      "label": "Calendar days",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "weeks",
      "label": "Working weeks",
      "format": "decimal",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Start date: 2026-09-30",
      "End date: 2026-09-30",
      "Holidays in the range: 0",
      "Working hours per day: 8"
    ],
    "outputs": [
      "Working days: 0",
      "Working hours: 0",
      "Weekdays before holidays: 0",
      "Weekend days: 0",
      "Calendar days: 0",
      "Working weeks: 0"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter start date.",
      "Enter end date.",
      "Enter holidays in the range.",
      "Enter working hours per day.",
      "Read your working days on the right — it updates as you type.",
      "Hit Share to keep the scenario or send it to someone."
    ]
  },
  "scenarios": [
    {
      "name": "Conservative",
      "description": "Lower-end numbers — what if things land soft?",
      "values": {
        "start": "2026-09-30",
        "end": "2026-09-30",
        "holidays": 0,
        "hoursPerDay": 4.8
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "start": "2026-09-30",
        "end": "2026-09-30",
        "holidays": 0,
        "hoursPerDay": 8
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "start": "2026-09-30",
        "end": "2026-09-30",
        "holidays": 0,
        "hoursPerDay": 12.8
      }
    }
  ],
  "limitations": [
    "Estimates assume standard, average conditions — local rules, pricing, and materials vary.",
    "Results are rounded for readability; add a buffer before ordering, booking, or committing.",
    "Double-check anything with a real cost attached against a local quote."
  ],
  "faq": [
    {
      "q": "How does the business days calculator work?",
      "a": "Contract turnaround, SLA windows, and payroll cutoffs all run on business days. Subtract your company holidays to get the number teams actually plan against. The underlying maths is: Business days = Total days − weekends − holidays."
    },
    {
      "q": "What do I need to enter?",
      "a": "4 values: start date, end date, holidays in the range, and working hours per day. Each field starts with a sensible default, so you can change one number at a time and watch the result move."
    },
    {
      "q": "What does the working days result mean?",
      "a": "It is returned as a whole number and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds."
    },
    {
      "q": "Is this calculator free, and do I need an account?",
      "a": "Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser."
    },
    {
      "q": "How accurate is the result?",
      "a": "It applies the standard formula exactly, so the arithmetic is precise. Estimates assume standard, average conditions — local rules, pricing, and materials vary."
    },
    {
      "q": "Who is this tool for?",
      "a": "It's built for anyone doing everyday planning maths — a quick estimate that would otherwise need four browser tabs and a calculator app."
    }
  ],
  "related": [
    "https://www.revenuelab.fyi/toolbox/days-between-dates",
    "https://www.revenuelab.fyi/toolbox/deadline-calculator",
    "https://www.revenuelab.fyi/toolbox/add-days-to-date"
  ],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Business Days Calculator (https://www.revenuelab.fyi/toolbox/business-days)"
}