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.
- Constant-pace estimate; comprehension, text difficulty and breaks are not measured.
Example Calculation
- Words read: 1200
- Elapsed reading time: 6 min
- Words remaining: 6000
1200 words in six minutes gives 200 words/min; 6000 remaining words take 30 minutes at that pace.
Frequently asked questions
How do I use this calculator?
Enter words read, elapsed reading time, words remaining. The result updates automatically. Use Reset to restore the example values.
What method does it use?
speed=words/time; remaining time=remaining words/speed.. Constant-pace estimate; comprehension, text difficulty and breaks are not measured.
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.