Convert Date to Percentage lets you figure out how far a specific date is through the year. Whether you’re checking how much of the year has passed or planning by day-of-year, this tool gives you the exact percentage instantly.
How to Use:
- Type or paste one or more dates into the left box, using
YYYY-MM-DDformat. - Each line should have a single date – it processes them all at once.
- The percentage of the year completed for each date appears on the right automatically.
- Use Copy Output or Export to File to save the results.
- Hit Clear All to reset the tool completely.
- You can also import dates from a
.txtor.csvfile using the Choose File button.
What Convert Date to Percentage can do:
- Calculates how far along a given date is in its calendar year.
- Accepts multi-line inputs and provides individual percentage results for each date.
- Validates input and skips or marks invalid dates like
2025-13-40. - Gives precise percentage with two decimal points, even for leap years.
- Auto-updates and highlights the output area when results change.
Example:
2025-01-01
2025-03-15
2025-06-30
2025-12-31Returns:
2025-01-01 = 0.00%
2025-03-15 = 20.27%
2025-06-30 = 49.59%
2025-12-31 = 99.73%Date to Year Percentage Conversion Table:
This table shows how far each listed calendar date falls through the year, expressed as a percentage. It’s useful for project tracking, time-based goals, or seeing year progress based on date position.
| Date | Day of Year | Year Progress (%) |
|---|---|---|
| 2024-01-01 | 1 | 0.27% |
| 2024-02-01 | 32 | 8.74% |
| 2024-03-01 | 61 | 16.65% |
| 2024-04-01 | 92 | 25.07% |
| 2024-06-30 | 182 | 49.73% |
| 2024-07-01 | 183 | 50.00% |
| 2024-09-01 | 245 | 66.85% |
| 2024-10-01 | 275 | 75.34% |
| 2024-12-01 | 336 | 92.03% |
| 2024-12-31 | 366 | 100.00% |
Common Use Cases:
Trying to track how much of the year has gone by? This tool is perfect for progress reports, day-of-year planning, seasonal analysis, or just general curiosity. With Convert Date to Percentage, you get accurate, formatted insights at a glance.
Useful Tools & Suggestions:
If you’re measuring time progress, Convert Time to Percentage works the same way but for hours and minutes. And to figure out exactly where a date sits, Find Day of the Year gives you the number you need to calculate it.