Time Percentage Calculator

Calculate what percentage of a time period has elapsed, or find what X% of a time duration equals.

FAQ
How do I calculate what percentage of a day has passed?
Divide the elapsed hours by 24, then multiply by 100. Example: 6 hours out of 24 = (6 ÷ 24) × 100 = 25% of the day has elapsed.
How do I find 30% of 2 hours?
30% of 2 hours = 0.30 × 2 = 0.6 hours = 36 minutes. You can also do this in minutes: 30% of 120 minutes = 36 minutes.
What percentage of the year has passed today?
Divide the current day number (1–365) by 365, then multiply by 100. For example, day 100 = (100 ÷ 365) × 100 ≈ 27.4% of the year. Use the elapsed/total calculator above with "days" as the unit.

About this calculator

This calculator handles two common time-percentage problems: finding what fraction of a time period has passed (useful for project timelines, scheduling, and deadlines), and finding what a percentage of a time duration equals (useful for time tracking and scheduling).