Education & Grades
Grade Calculator
Grade — grade Calculator divides the marks obtained by the total and multiplies by 100, then maps that percentage to the grading scale you select. This page runs that same calculation on your numbers, in your browser: no signup, no uploads, nothing stored.
From your marks obtained, total marks and grading scale, Grade Calculator computes the percentage, grade and letter via marks ÷ total against the grading scale. No accounts, no uploads — just an instant way to work out your grade.
Estimate only. The grade depends on the marks you enter and the grading scale you select; your institution's official scale may differ.
About this calculator
Grade Calculator divides the marks obtained by the total and multiplies by 100, then maps that percentage to the grading scale you select. That is the whole of the calculation — the mistakes happen in the inputs. It matters when grades, percentages or averages decide a next step and hand arithmetic is error-prone. Worked example: With homework 90 (weight 40%) and exam 80 (weight 60%): 90×0.4 + 80×0.6 = 84 . Use the calculator with your own figures; it runs entirely on your device.
How to use
- Enter the marks you obtained.
- Enter the total marks the test was out of.
- Choose the grading scale your institution uses.
- Tap Calculate to see your percentage and letter grade.
Why use the Grade Calculator
Instant
Every figure is computed on your device the moment you tap Calculate.
Private
Your marks and grades stay in your browser; nothing is sent to a server or saved.
Free
No signup, no paywall, and no ads placed inside your results.
Works offline
Once the page has loaded it keeps working even on a weak connection.
Mobile-first
Laid out for phones and tablets just as much as for desktops.
Honest estimates
Uses common academic formulas; grading scales, CGPA rules, attendance policies, and conversion methods vary by institution, so confirm with your school or university.
Common uses
Use it when comparing scores to grade bands
Use it for a letter-grade result
Use it when reviewing a result
Use it for a grade summary
Use it when turning marks into a grade
Use it for progress tracking
Technical notes
Grade Calculator divides the marks obtained by the total and multiplies by 100, then maps that percentage to the grading scale you select.
Your institution's official result, rounding or grade boundaries may differ from this estimate.
Because it runs locally, results appear instantly with no server round-trip.
Worked example
With homework 90 (weight 40%) and exam 80 (weight 60%): 90×0.4 + 80×0.6 = 84.
FAQ
Which grade scale does this grade calculator use?
You choose: a US letter scale (A to F), Indian percentage bands (A+, A, B ...), or UK honours classes (First, 2:1, 2:2 ...). The same percentage maps to different grades on each.
Does the Grade Calculator send my data to a server?
No. The Grade Calculator runs entirely in your browser with JavaScript; the values you enter never leave your device and nothing is uploaded or saved.
How is the percentage calculated?
It divides marks obtained by total marks and multiplies by 100, so 85 out of 100 is 85%.
Why does my letter grade differ from a friend's?
Grade boundaries vary by scale and by institution. This tool uses common bands for each scale, but your school or university may set its own cut-offs.