Developed and maintained by ProWorkstack · Development and review process
Budget review time for incorrect and uncertain practice answers using measured explanation-review times.
Your results
Enter your inputs and select Calculate.
How this calculator works
Incorrect answers are capped at total questions. Uncertain correct answers are capped at remaining correct answers. Review hours = (incorrect count × incorrect-review minutes + uncertain-correct count × uncertain-review minutes) ÷ 60. Review days = ceiling(hours ÷ positive daily review hours).Worked example
Forty incorrect answers at eight minutes need 320 minutes. Thirty uncertain correct answers at four minutes need 120 minutes. Total review is 440 minutes, or 7.33 hours. At two review hours per day, reserve four whole days.Assumptions
Defaults are illustrative. Replace them with your own measured quantities and documented assumptions. Use matching periods and a consistent currency wherever monetary amounts are entered.Interpreting your results
This does not diagnose knowledge, predict USMLE performance or calculate an official score. It budgets practice-review work only. Review time varies by topic and should be measured rather than treated as a benchmark.Calculation formulas
- w
MIN(wrong,questions)- u
MIN(uncertain,MAX(questions-w,0))- hours
(w*wrongmin+u*uncertainmin)/60- Total answer review time
hours- Full review days needed
CEIL(hours/available)- Practice answers correct
SAFE_DIV(questions-w,questions,0)*100
Frequently asked questions
What should I check before using the result?
A guessed correct answer can still deserve review. Keep it outside the incorrect count so the same question is priced once. Use an uncertainty definition you can apply consistently across practice blocks.
Does this tool connect to my records?
No. This is a local calculation from the figures you enter. It does not scan accounts, import private records or verify legal, regulatory or exam requirements.
Maintained by ProWorkstack · Last reviewed: 2026-10-04 · Development and review process