Best Calculators for A-Level Maths 2026

Choosing the right calculator for A-Level Maths can make a meaningful difference to your exam performance. A-Level content is significantly more demanding than GCSE, and you will rely on your calculator for everything from integration checks to statistical distributions. Picking a model that matches your exam board's regulations, covers the required functionality, and feels comfortable to use is essential.

In this guide, we review the calculator policies of all three major exam boards (Edexcel, AQA, and OCR), recommend the best calculator models for A-Level Maths and Further Maths, and explain the key features you should look for.

Exam Board Calculator Policies

All three exam boards allow scientific calculators for A-Level Maths. The rules are broadly similar, but there are important details you need to know.

Edexcel (Pearson) A-Level Maths

Edexcel permits a scientific or graphing calculator for all three A-Level Maths papers (Pure 1, Pure 2, and Statistics & Mechanics). The calculator must not have:

• A symbolic algebra system (CAS)
• The ability to communicate with other devices
• A language translator
• Retrievable text or formulae that could give an unfair advantage

Edexcel explicitly states that candidates should have a calculator with at least the following capabilities: an iterative function, the ability to compute summary statistics and access probabilities from standard statistical distributions (including the binomial and normal distributions).

AQA A-Level Maths

AQA's A-Level Maths specification (7357) requires a calculator that can:

• Perform iterative calculations
• Compute summary statistics (mean, standard deviation) from a dataset
• Access standard statistical distribution functions, particularly the binomial cumulative distribution function and the normal cumulative distribution function

AQA does not permit calculators with CAS, internet connectivity, or data transmission capabilities. Graphing calculators without CAS are allowed.

OCR A-Level Maths (MEI and standard)

OCR's specification requires a calculator that can compute summary statistics, access cumulative binomial and normal distribution probabilities, and perform iterative procedures. As with the other boards, CAS calculators are not permitted.

OCR MEI (the alternative OCR specification) has the same calculator requirements.

Why Calculator Choice Matters at A-Level

At GCSE, most scientific calculators are broadly equivalent. At A-Level, the gap widens because the syllabus demands specific statistical functionality:

• Binomial probabilities: You need to calculate values like for directly on the calculator, rather than using tables.
• Normal distribution: You need to find probabilities such as for , and also inverse normal values (finding the x-value for a given probability).
• Iterative methods: The pure maths papers may include questions where you apply an iterative formula repeatedly, such as .
• Numerical integration checks: While you must show analytical working, a calculator can verify your definite integral answers.

Best Calculators for A-Level Maths

1. Casio fx-991EX (ClassWiz) — Best Overall

The Casio fx-991EX is the gold standard for A-Level Maths in the UK. It is the calculator most recommended by teachers and is used by the majority of A-Level students. Key features:

• Statistical distributions: Built-in binomial, normal, Poisson, and other distributions with cumulative and inverse functions
• Natural textbook display: Fractions, surds, and integrals displayed as they appear in textbooks
• Spreadsheet function: A small spreadsheet for tabulating data and performing calculations on columns
• Table of values: Generate values for any function over a specified range
• Iterative function: The ANS key makes iterative calculations straightforward
• Matrix and vector calculations: Useful for Further Maths
• Equation solver: Solve polynomial and simultaneous equations numerically
• Numerical integration and differentiation: Evaluate and numerically

Price: approximately 25 to 30 pounds. It is fully permitted by all three exam boards and does not contain CAS.

2. Casio fx-991CW — Newest Model

The fx-991CW is the successor to the fx-991EX, released in 2023. It has a cleaner interface, a slightly faster processor, and the same core functionality. If you are buying new, this is the most up-to-date option. It covers all the same A-Level requirements as the fx-991EX.

3. TI-84 Plus CE — Best Graphing Calculator

The TI-84 Plus CE is a graphing calculator that is permitted for A-Level Maths (it does not have CAS). While it is more common in the US, some UK students prefer it for its graphing capabilities. Features:

• Full-colour graphing display
• Statistical distributions (binomial, normal, chi-square, etc.)
• Matrix operations
• Table of values with graph display
• Programmable (though memory must be cleared for exams)

Price: approximately 90 to 110 pounds. The higher cost is the main downside. It offers more than you strictly need for A-Level Maths, but the graphing display can be helpful for understanding functions and checking answers.

4. Casio fx-CG50 — Best Graphing Calculator (UK)

The Casio fx-CG50 is the most popular graphing calculator among UK A-Level students. It features a full-colour display, 3D graphing, and the same statistical distribution functions as the fx-991EX. It does not have CAS and is permitted by all exam boards.

Price: approximately 80 to 100 pounds. A good middle ground between the scientific-only fx-991EX and the premium TI-84 Plus CE.

5. Casio fx-83GT CW / fx-85GT CW — Budget Option

These are the standard GCSE calculators. While they work for many A-Level topics, they lack the built-in statistical distribution functions required by the exam specifications. If you already own one, you will likely need to upgrade before your statistics exams.

Calculator Features You Need for A-Level

Here is a checklist of features your A-Level calculator must have:

• Binomial cumulative distribution function: for
• Normal cumulative distribution function: for
• Inverse normal function: find given
• Iterative ANS function for applying recursive formulas
• Summary statistics (mean, standard deviation) from raw or frequency data
• Table of values for generating function outputs
• Numerical integration (for checking definite integrals)

How to Use Your Calculator for Key A-Level Topics

Binomial Distribution

Suppose and you need . On the Casio fx-991EX:

1. Press MENU and select Distribution
2. Select Binomial CD (cumulative distribution)
3. Enter x = 5, n = 20, p = 0.3
4. The calculator gives (to 4 d.p.)

Normal Distribution

Suppose (mean 50, variance 16, so ) and you need . On the Casio fx-991EX:

1. Press MENU and select Distribution
2. Select Normal CD
3. Enter lower bound = -999999, upper bound = 55, ,
4. The calculator gives (to 4 d.p.)

Iteration

To find the root of near using the iteration :

1. Type 2 and press = (this sets ANS = 2)
2. Type and press = repeatedly
3. Watch the value converge: 2, 2.0801, 2.0933, 2.0955, ...

Checking Definite Integrals

Suppose you have calculated by hand and got 22. On the fx-991EX:

1. Press the integration key
2. Enter the function , lower limit 1, upper limit 3
3. The calculator confirms the answer is 22

Calculators for A-Level Further Maths

If you are also studying Further Maths, the calculator requirements are the same, but you will benefit from additional features:

• Matrix calculations: The fx-991EX handles matrices up to 4x4, which is useful for checking determinants, inverses, and eigenvalues
• Complex number mode: The fx-991EX can perform arithmetic with complex numbers, including modulus-argument form
• Poisson distribution: Further Statistics modules require Poisson calculations, which the fx-991EX supports

Practise A-Level Calculator Skills Online

Frequently Asked Questions

Is the Casio fx-991EX allowed for A-Level Maths?

Yes. The Casio fx-991EX is permitted by Edexcel, AQA, and OCR for A-Level Maths. It does not have CAS and meets all the statistical distribution requirements specified by each exam board.

Do I need a graphing calculator for A-Level?

No. A scientific calculator like the Casio fx-991EX covers everything you need for A-Level Maths. A graphing calculator is a nice bonus for visualising functions, but it is not required and costs significantly more.

Can I use the same calculator for GCSE and A-Level?

It depends on the model. The Casio fx-83GT CW and fx-85GT CW lack the statistical distribution functions required at A-Level. If you own one of these, you will need to upgrade. The Casio fx-991EX works for both GCSE and A-Level.

What is the difference between the fx-991EX and fx-991CW?

The fx-991CW is the newer model with a refreshed interface and slightly different menu navigation. The core mathematical functionality is essentially the same. Both are fully permitted for A-Level exams.

Are Casio calculators better than Texas Instruments for A-Level?

In the UK, Casio dominates the A-Level market. Most textbooks, teacher guides, and online tutorials assume you are using a Casio model. While Texas Instruments calculators are equally capable mathematically, you may find it harder to follow along with button-by-button instructions if your teacher uses Casio.

Can I use a calculator in all A-Level Maths papers?

Yes. Unlike GCSE, which has a non-calculator paper, all A-Level Maths papers (across all three exam boards) allow a calculator. You should bring your calculator to every exam.