Percentage to Marks Converter

Convert a percentage score into marks out of a total

A percentage score is useful for comparing results across different tests, but many real situations need the raw marks. Teachers, students, and parents often have a percentage (like 68% or 82.5%) and need to convert it into “marks out of” a specific total, such as 40, 75, 100, or 150. This Percentage to Marks Converter does exactly that, using the standard conversion most schools and exam settings rely on.

The primary decision this page supports is simple: given a percentage and a known total, what is the equivalent mark score? This is not a grade boundary tool, a pass or fail predictor, or a curving calculator. It is narrowly focused on the direct conversion between percentage and marks using a total marks figure you already know.

To use the calculator, enter your percentage score and the total marks available for the assessment. The calculator multiplies the total marks by the percentage (as a fraction of 100) to produce your raw marks. If you want a cleaner number for reporting, select a rounding option. Rounding is optional and does not change the underlying conversion, it only changes how the final mark is presented.

Assumptions and how to use this calculator

• The percentage score is a straightforward percent out of 100 (for example, 72.5%), not a percentile rank.
• Total marks are the maximum possible marks for the test or exam section (for example, 150 total marks).
• The conversion uses the standard formula: marks = (percentage ÷ 100) × total marks.
• Rounding is applied only to the displayed marks result; “No rounding” shows the exact calculated marks.
• This tool assumes no weighting, no scaling, and no grade curve. If your marks are weighted across sections, convert each section separately using its own total.

Common questions

What formula is used to convert percentage to marks?

The formula is marks = (percentage ÷ 100) × total marks. For example, 80% of 150 marks is (80 ÷ 100) × 150 = 120 marks.

What if my percentage has decimals, like 73.25%?

Decimals are normal and the calculator supports them. A decimal percentage simply produces a decimal marks value unless you choose rounding. If your institution expects whole marks, set rounding to “Nearest whole mark.”

What rounding option should I choose?

If you are submitting or reporting marks where only whole marks are accepted, use “Nearest whole mark.” If you are calculating internal results from a rubric where half marks are allowed, use “Nearest 0.5 mark.” If you want maximum precision without changing the math, choose “No rounding.”

What if my total marks are not 100?

That is the point of this tool. Enter the correct total (for example, 40, 75, 150) and the calculator converts your percentage into marks out of that total. The same formula applies regardless of the total.

Can I use this for weighted exams or multi-section papers?

Not directly. If an exam has sections with different totals or weights, convert each section’s percentage into marks using that section’s total, then combine the marks according to the exam rules. This calculator is for one percentage and one total at a time.