Guidance

GCSE 9 to 1 grade scale explained 

An explanation of the GCSE 9 to 1 grade scale and how it compares to the previous A* to G scale.

• From: Ofqual
• Published: 30 June 2025

Applies to England

Documents

GCSE 9 to 1 grade scale explained 

Ref: Ofqual/25/7234

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Details

Since 2017, GCSEs in England have been graded on a 9 to 1 scale, replacing the previous A to G scale. This guide explains how the current and old grades compare and details how combined science and overall GCSE grading work.