Picking the right calculator — and knowing how to use it — can save you marks in A Level Physics.

Below is a quick guide to permitted calculators, recommended models, and what to expect from the formula/data sheet in the exam.

Are calculators allowed in A Level Physics?

Yes. Calculators are permitted in all A Level Physics written papers, but they must meet exam rules. As a rule of thumb:

• No CAS (Computer Algebra Systems) — i.e., no symbolic algebra or exact equation solving.
• No communication features — e.g., Wi-Fi/Bluetooth.
• No QWERTY keyboards or devices that store/retrieve text notes.

If in doubt, choose a widely used, exam-approved scientific calculator and practise with it well before exam day.

Recommended calculator models

• Casio fx-991EX ClassWiz — non-programmable, fast, and packed with functions you’ll use in Physics (powers, logs, stats, tables). A cost-effective, safe choice.
• Casio fx-CG50 — a permitted graphing model that’s excellent for visualising functions and quick number-crunching. Helpful, but not essential for Physics.

Other brands/models can be fine if they meet exam rules, but the two above are the most commonly recommended for UK A Levels.

Functions you’ll actually use in Physics

• Standard form, prefixes & powers (×10ⁿ, EE/EXP key), and significant figures.
• Logs & exponentials (radioactivity, SHM, capacitors): ln, ex.
• Trig & inverse trig for vectors, waves and fields — check degree vs radian mode.
• Statistics (mean, standard deviation) and table mode for quick value checks.
• Ans/Memory features for chaining calculations without rounding early.

Angle mode: degrees or radians?

Most exam questions default to degrees unless stated otherwise, but some contexts (e.g., SHM, circular motion) can use radians. Always check the question; set the correct mode, and annotate it on your script to avoid mixed-mode errors.

Will I get a formula sheet?

In AQA A Level Physics, you are given an official Data and Formulae sheet in each written paper. It includes key physical constants and a selection of commonly used equations.

However, it’s not a substitute for understanding: you still need to know what each symbol means, the units, and how to rearrange and choose the right model for the problem.

Exam-day tips for calculators

• Bring fresh batteries (and a spare) and run a quick self-check before you enter.
• Set the display to a sensible format (SCI/ENG) and avoid premature rounding — round at the final step.
• Write the equation first, then substitute with units — this earns method marks even if your number slips.
• For uncertainties and gradients, practise using your calculator with raw data so you’re fast on the day.

Related guides

How to prepare for A Level Physics · Is A Level Physics hard? · Do I need the practical endorsement? · What is the pass mark? · Find an exam centre

FAQs

Is a graphing calculator worth it for Physics?
Nice to have, not essential. Most students do everything they need on the Casio fx-991EX.

Can I store formulas or notes on my calculator?
Don’t rely on stored text — invigilators can require a reset. Learn the models and units; use the provided data/formula sheet properly.

Which mode should I use for significant figures?
Work in full precision and round at the end to the appropriate sig figs stated in the question or consistent with data given.