Convert raw marks to UMS

Use our raw mark to UMS converter to convert raw marks to UMS marks for any unit from the available series. You can:

Input one or more scores directly
See a table of UMS for all possible raw marks together with accompanying grades
Import a CSV containing raw marks for conversion and export a CSV containing the results.

This tool includes all Cambridge Advanced Nationals NEA units, including those without entries for the first moderation window (February 2026 series). For these units, it shows the ‘design thresholds’ included in section 6.4 of the specification.

For more information about raw marks, UMS and how grades are calculated, please see our guide to calculating your grade.

If you are using the tool to convert more than one unit, make sure you click 'Reset' after each unit.

Choose your unit

First choose your unit by selecting the qualification type, series, qualification and unit from the dropdowns.

Qualification type*
Series*
Qualification*
Unit*

Grade boundaries

Raw marks and UMS marks for grade boundaries for your chosen unit will be shown here.

Convert raw marks

Now select a tab to convert raw marks to UMS marks using the method of your choice.

Choose how many scores you want to convert (up to 50 - you can change this at any time), and enter values to convert.

How many raw scores do you want to convert?

Raw score to convert	UMS score	Grade
	UMS displays here	Grade displays here

Converting UMS marks to raw marks

NB it is not possible to directly convert a UMS mark back to a raw mark as sometimes there are multiple raw marks for each UMS mark. You can, however, use the 'Show all scores' tab, to see what raw marks correspond to a UMS mark.

Choose a CSV file to upload and convert. You will be able to download the results.

Formatting instructions

The CSV file should consist of two columns: 'Candidate' and 'Raw score'. The 'Candidate' column should include a candidate identifier such as a name or student id, and the 'Raw score' column should contain the candidate's raw score for this unit. See this sample file for an example.

NB: If you upload a CSV file, please note you are not uploading data to OCR's servers or transferring any data across the internet. All processing of the CSV file is carried out in your browser.