Teachers use different scales, but percentages make any test easy to compare.
How to use the Grade Calculator
- Points earned
- Total points
- Want to work backwards? Type a value into Score and Points earned is calculated for you.
Results update as you type, and every field accepts the units shown in its menu.
How it works
Divide the points earned by the points possible and multiply by 100.
Tips
- Track a typical week before planning – real figures beat estimates.
- Break big tasks into smaller pieces and plan buffer time for interruptions.
- Re-run the numbers when your inputs change so plans stay realistic.
- Use results as a guide for decisions, not as a precise prediction.
Common mistakes to avoid
- Counting calendar days when the deadline is in working days (or the reverse).
- Forgetting breaks, setup and handover time.
- Assuming every day is as productive as your best day.
Inputs explained
| Field | What to enter |
|---|---|
| Points earned | A number |
| Total points | A number |
What each result means
- Score = [Points earned]÷[Total points]×100
- Points missed = [Total points] – [Points earned]
Example values
How the main result changes when Points earned changes and everything else stays at the example values above:
| Points earned | Score (%) |
|---|---|
| 21.5 | 43 |
| 32.25 | 64.5 |
| 43 | 86 |
| 53.75 | 107.5 |
| 64.5 | 129 |
| 86 | 172 |
Formula
Grade % = points earned ÷ total points × 100Worked example
Inputs — Points earned: 43; Total points: 50.
Results — Score = 86 %; Points missed = 7.
Frequently asked questions
Is 90% always an A?
On many U.S. scales, yes; your school may use plus/minus grades or a different scale.
How do I find the score needed for a grade?
Type the target percentage into the result.
What formula does the Grade Calculator use?
Grade % = points earned ÷ total points × 100.
Can I work backwards from the result?
Yes. Type the result you want into Score and the calculator finds the matching points earned.