How this conversion works — and why it's approximate
There is no single official conversion between UK degree results and the US 4.0 GPA scale. The mapping used here reflects the equivalences most commonly applied by credential evaluators and admissions offices: a First-Class result (70%+) is typically treated as around a 4.0; a strong 2:1 (65–69%) around 3.7; a 2:1 (60–64%) around 3.3; a 2:2 (50–59%) around 2.7–3.0; and a Third (40–49%) around 2.0–2.3.
Remember that a UK 70% is not a US 70% — as our degree classification calculator explains, UK marking treats 70% as the threshold for the top classification, not a mediocre score, which is exactly why a percentage can't be converted digit-for-digit onto a US scale.

Before you self-convert: check what the application asks for
Some US application portals specifically ask you not to self-convert your grade at all — they either want your result exactly as your university issued it, or they require an official evaluation from a credential evaluator such as WES. If your target program asks for an official evaluation, use that route; treat this calculator as a planning guide for understanding roughly where your result sits, not as a number to enter on a form.
If you don't yet have your overall percentage, work it out first with the university grade calculator or the credit-weighted calculator, then convert the final figure here.

