Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Assumes the entered video speed is sustainable. Pausing, review and assessment time must be included explicitly.
Example Calculation
- Remaining video runtime: 20 h
- Playback speed: 1.25 ×
- Exercises and reading: 10 h
- Study hours per week: 5 h/week
20 hours of video at 1.25× plus ten exercise hours require 26 hours or 5.2 weeks at five hours/week.
Frequently asked questions
How do I use this calculator?
Enter remaining video runtime, playback speed, exercises and reading, study hours per week. The result updates automatically. Use Reset to restore the example values.
What method does it use?
total hours=video/speed+other study; weeks=total/weekly budget.. Assumes the entered video speed is sustainable. Pausing, review and assessment time must be included explicitly.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.