Examples
Examples
Try the starting example
- Books: name, total pages, pages completed
- Book A,100,50 Book B,80,0
- Pages per reading day
- 30
- First reading date
- 2026-10-23
- Rest weekdays: 1=Mon to 7=Sun, or none
- 6,7
- Pages remaining
- 130
- Reading days required
- 5
- Projected completion date
- 2026-10-29
- Book completion dates
- Book A: 2026-10-26; Book B: 2026-10-29
Try another scenario
- Books: name, total pages, pages completed
- Book A,100,50 Book B,80,0
- Pages per reading day
- 50
- First reading date
- 2026-10-23
- Rest weekdays: 1=Mon to 7=Sun, or none
- none
- Pages remaining
- 130
- Reading days required
- 3
- Projected completion date
- 2026-10-25
- Book completion dates
- Book A: 2026-10-23; Book B: 2026-10-25
Calculation method
Calculation method
Pages remaining
Sum(total pages − completed pages), validating whole page counts.
Reading days required
Round up remaining pages / daily page target. Unused daily capacity continues into the next book.
Projected completion date
Last active date needed, skipping entered rest weekdays; Already complete if nothing remains.
Book completion dates
For each book, use its cumulative remaining-page position to find its completion day.
Symbols and units
- a
- Books: name, total pages, pages completed
- b
- Pages per reading day
- c
- First reading date
- d
- Rest weekdays: 1=Mon to 7=Sun, or none
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Sequential reading in the listed order, with a fixed whole-page target. A day can finish one book and begin the next. No reading-speed or comprehension claim is made.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
OpenStax: arithmetic and geometry ↗
Background reading; this does not imply endorsement or independent review of SumFizz.