Convert Years to Days

Need to know how many days are in 1.5 years or 20? The Convert Years to Days Tool gives you a quick and accurate way to convert years into days using the average Gregorian year length of 365.2425 days. Whether you’re analyzing historical timeframes, processing date ranges, or estimating long-term durations, this tool delivers results instantly.

Paste your input above or import a file below.
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Supported file types: .txt, .csv, .log, .json, .xml, .md, .html, .htm, .yaml, .yml, .ini
Total items: 0

How to Use:

  1. Enter Years: Type or paste one or more year values into the input box. Put each entry on its own line.
  2. Live Conversion: Each value is immediately converted into days using the formula years × 365.2425, rounded to two decimal places.
  3. Import File: Click Choose File to upload a .txt, .csv, or other supported plain-text file with year values.
  4. Copy or Export: Use Copy Output to copy the results or Export to File to save them to your device.
  5. Clear All: Click Clear All to reset all fields and start fresh.

What Convert Years to Days Tool can do:

  • Converts years into days using the average: 365.2425 days per year
  • Handles multiline input with real-time feedback and output flashing
  • Flags invalid entries as Invalid input
  • Supports file-based import/export for batch processing
  • Displays total number of processed items

Example:

Input:

1  
2.5  
4  
0.75

Output:

365.24 days  
913.11 days  
1460.97 days  
273.93 days

Common Use Cases:

This tool is great for converting academic calendars, lease durations, subscription plans, or project timelines. It’s especially helpful for analysts, developers, and planners who work with long-term durations and need precise, calendar-aligned conversions. Paste your data, convert instantly, and export if needed.

Useful Tools & Suggestions:

If you’re already looking at days, Convert Days to Hours gets you into the nitty-gritty. And if you ever need to reverse course, Convert Days to Years brings you right back without guessing.

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