{
    "name": "Video Completion Rate Calculator",
    "url": "https://calculators.geekmidst.com/calculators/video-completion-rate-calculator",
    "markdown": "https://calculators.geekmidst.com/calculators/video-completion-rate-calculator.md",
    "category": "Marketing analytics",
    "description": "Calculate video completion rate as completed views divided by video starts, the drop-off rate, and view rate from impressions.",
    "summary": "Video completion rate is the share of people who started a video and watched it to the end: completed views divided by starts, times 100.",
    "also_called": [
        "VCR calculator",
        "Video view-through rate calculator"
    ],
    "applies_to": "Worldwide",
    "last_updated": "2026-10-29",
    "computation": "Results are computed in the visitor’s browser on the HTML page. This API describes the calculator; it does not compute results.",
    "inputs": [
        {
            "name": "starts",
            "label": "Video starts",
            "type": "number",
            "default": "8000"
        },
        {
            "name": "completions",
            "label": "Completed views",
            "type": "number",
            "default": "2600"
        },
        {
            "name": "impressions",
            "label": "Impressions",
            "type": "number",
            "default": "50000",
            "optional": true
        }
    ],
    "outputs": [
        {
            "key": "completion_rate",
            "label": "Completion rate",
            "format": "percent"
        },
        {
            "key": "drop_off_rate",
            "label": "Started but did not finish",
            "format": "percent"
        },
        {
            "key": "view_rate",
            "label": "View rate (starts ÷ impressions)",
            "format": "percent"
        }
    ],
    "formula": {
        "text": "Completion rate = Completed views ÷ Starts × 100;  Drop-off = 100 − Completion rate;  View rate = Starts ÷ Impressions × 100",
        "variables": {
            "Starts": "video plays that began (the completion-rate denominator)",
            "Impressions": "times the video was shown (the view-rate denominator)"
        }
    },
    "worked_example": {
        "inputs": {
            "starts": "8000",
            "completions": "2600",
            "impressions": "50000"
        },
        "steps": [
            "Completion rate = 2,600 ÷ 8,000 × 100 = 32.5%.",
            "Drop-off = 100 − 32.5 = 67.5%.",
            "View rate = 8,000 ÷ 50,000 × 100 = 16%."
        ],
        "result": "2,600 completions from 8,000 starts is a 32.5% completion rate."
    },
    "interpretation": "Completion rate falls with length, so compare videos of similar duration. For long videos, quartile retention (25%, 50%, 75%) says more about where viewers leave.",
    "assumptions": [
        "Starts and completions come from the same platform report."
    ],
    "limitations": [
        "Platforms define a “view” and a “completion” differently (some count 30 seconds as complete), so do not compare rates across platforms directly."
    ],
    "rules": null,
    "faqs": [
        {
            "question": "Some platforms divide by impressions. Which is right?",
            "answer": "Both exist. Dividing by starts measures the content; dividing by impressions mixes in how many people chose to play. State the denominator when you report it."
        }
    ],
    "sources": [],
    "related": [
        {
            "name": "Engagement Rate Calculator",
            "url": "https://calculators.geekmidst.com/calculators/engagement-rate-calculator"
        },
        {
            "name": "Cost Per Mille (CPM) Calculator",
            "url": "https://calculators.geekmidst.com/calculators/cost-per-mille-calculator"
        },
        {
            "name": "Ad Frequency Calculator",
            "url": "https://calculators.geekmidst.com/calculators/ad-frequency-calculator"
        },
        {
            "name": "Percentage Calculator",
            "url": "https://calculators.geekmidst.com/calculators/percentage-calculator"
        }
    ],
    "disclaimer": null,
    "publisher": "GM¹X CalcVerse"
}