Why You Need the Right Calculator for the ACT
Choosing the best calculator for ACT means gaining speed, accuracy, and confidence when it matters most. But not all models are allowed, so it's important to know exactly what calculators are allowed on the ACT before you show up on test day. Here's why your choice matters:
- Improves Accuracy and Speed: The best ACT calculator helps you solve problems faster, reduces manual errors, and gives you an edge in time management during the math section.
- Builds Confidence Through Familiarity: Using the same model throughout your prep ensures you're not fumbling with buttons on test day. The best calculator for ACT exam is the one you know inside and out.
- Maximizes Score Potential: Choosing a model with graphing capabilities can simplify complex questions, making tough problems more manageable and improving your overall score.
- Complies with ACT Rules: Understanding what's allowed (e.g., are TI‑84 Plus calculators allowed on the ACT or can you use a graphing calculator on the ACT) ensures you won't be disqualified or forced to take the test without your go-to tool. Always review the ACT approved calculators before test day.
ACT Calculator Comparison Chart
Choosing the best calculator for ACT exam means balancing functionality, speed, and ACT compliance. Whether you're solving equations or graphing functions, the right calculator helps you work faster and smarter. Below is a quick comparison of the top 10 ACT calculators students can rely on:
| Model | Type | Key Features | ACT Approved? | Best For |
|---|---|---|---|---|
| TI-84 Plus CE | Graphing | High-res color display, fast processing, preloaded apps | ✅ | Advanced math, heavy graphing use |
| TI-84 Plus | Graphing | Classic interface, reliable battery, proven performance | ✅ | Students wanting a traditional, stable tool |
| TI-83 Plus | Graphing | Simplified features, easy to use | ✅ | First-time test takers, budget-friendly |
| Casio fx-9860GII | Graphing | High-speed CPU, backlit display, natural textbook input | ✅ | Fast calculations, graph-based questions |
| Casio fx-CG50 | Graphing | High-res color display, 3D graphing, intuitive UI | ✅ | Visual learners, geometry-focused sections |
| TI-Nspire CX (non-CAS) | Graphing | Powerful functionality, sleek interface | ✅ | Advanced users who want dynamic features |
| TI-36X Pro | Scientific | MultiView display, handles complex calculations | ✅ | Non-graphing users, science/math combos |
| Casio fx-115ES Plus | Scientific | Textbook-style display, solar + battery power | ✅ | Simple arithmetic, formula-based questions |
| Sharp EL-W516XBSL | Scientific | Large display, multiple modes, good memory | ✅ | Users needing multi-function use without graphs |
| HP 35s | Scientific | Programmable, RPN support, durable | ✅ | Experienced users comfortable with RPN |
Best ACT Calculators: Top Recommendations
With so many options out there, finding the best ACT calculator can be overwhelming. Here's a curated list of top picks based on ACT compliance, performance, and ease of use.
Best Budget ACT Calculator
| Calculator Model | Type | Key Features |
|---|---|---|
| TI-83 Plus | Graphing | Simple interface, essential functions |
| Casio fx-115ES Plus | Scientific | Natural textbook display, solar-powered |
| TI-36X Pro | Scientific | MultiView display, non-graphing |
| Casio fx-300ES Plus | Scientific | Simple functions, solar + battery |
| Sharp EL-W535TGBBL | Scientific | 4-line display, multiple modes |
Best Graphing Calculator for the ACT
| Calculator Model | Type | Key Features |
|---|---|---|
| TI-84 Plus CE | Graphing | High-res screen, graphing shortcuts, fast navigation |
| Casio fx-CG5 | Graphing | 3D graphing, clear visuals, intuitive interface |
| TI-Nspire CX (non-CAS) | Graphing | Customizable UI, powerful functions |
| Casio fx-9860GII | Graphing | Fast graph rendering, backlit display |
| TI-84 Plus | Graphing | Reliable, no frills, widely accepted |
Best Non-Graphing ACT Calculator
| Calculator Model | Type | Key Features |
|---|---|---|
| TI-36X Pro | Scientific | MultiView, solar-powered, advanced scientific functions |
| Casio fx-115ES Plus | Scientific | Natural textbook display, equation solving |
| Sharp EL-W516XBSL | Scientific | Multiple modes, large screen, memory |
| HP 35s | Scientific | Programmable, RPN logic |
| Casio fx-300ES Plus | Scientific | Lightweight, easy to use, solar + battery |
Key Features to Look for in an ACT Calculator
The right calculator can make a real difference on test day by not just solving problems, but saving time and boosting confidence. According to the ACT calculator policy, here are the features to look for without risking disqualification.
- Long Battery Life: You don't want your calculator dying mid-exam. Choose one with strong battery performance or dual power (solar + battery) to last the entire test.
- Easy Navigation & Shortcut Access: A calculator with intuitive buttons and menus helps you move quickly between functions. The fewer keys you have to press, the more time you save.
- Clear, Multi-Line Display: High-resolution or multi-line screens let you see your work as you go, reducing errors and making it easier to double-check calculations.
- ACT-Compliant Memory Functions: Basic memory and recall features can be helpful for storing numbers and reviewing entries. Make sure to avoid programmable functions that cross into CAS territory.
- Lightweight & Test-Friendly Design: Go for a compact, durable model that's easy to carry and won't get in the way during the test. Bonus points for rubber grips or covers that protect against slips.
Which Calculators Are Not Allowed on the ACT?
The ACT has strict rules about calculator use. To avoid surprises, always refer to the official ACT calculator list and make sure your device isn't on the list of prohibited calculators for ACT. Be sure to double-check your device before test day to avoid any last-minute issues.
| Category | Examples / Models | Notes |
|---|---|---|
| CAS (Computer Algebra System) | Texas Instruments: TI-89, TI-92, TI-Nspire CAS Hewlett-Packard: HP Prime, HP 48GII, 49G, 50G, 40G Casio: Casio ClassPad 400, 330, Algebra fx 2.0, CFX‑9970G |
CAS calculators are strictly banned, even if CAS features are disabled. |
| QWERTY Keyboards | Any calculator with a full alphabetic (typewriter-style) keyboard | These are not allowed due to potential for typing and storing text. |
| Tablets / Laptops / PDAs | iPads, Surface, Android tablets, laptops | Portable computing devices of any kind are not allowed. |
| Electronic Writing Pads | Stylus-based input devices | Only Sharp EL‑9600 is allowed—others are banned. |
| Calculators with Built-In Communication | Devices with internet, Bluetooth, or cellular connectivity | Any communication-enabled device is prohibited. |
| Calculators with Paper Tape | Printing calculators | Must remove all paper tape before testing or the calculator will be disallowed. |
| Noisy Calculators | Devices that make beeping sounds or key clicks | Sound must be turned off before the exam. |
| Infrared/IR Data Port Calculators | HP 38G, 39G, 48G | Data ports must be covered (e.g., with tape) if the device is to be used. |
| Calculators with Electrical Cords | Plug-in calculators | Power cords must be removed. Battery use only is allowed. |
| Calculators with Stored Programs | Any programmable device | All programs, especially CAS-related ones, must be deleted before testing. |
ACT Calculator Tips for Test Day
Bringing the best calculator for the ACT exam is just the first step; using it effectively under pressure is what really counts. The last thing you want on test day is being confused with buttons or second-guessing your calculator's functions. Use these tips to stay sharp and stress-free during the test.
Practice with the Same Calculator You'll Use
Get familiar with your calculator before test day. Don't bring a brand-new device you haven't used. The more comfortable you are with its functions and layout, the faster and more accurate you'll be.
Know Your Shortcuts
Whether it's accessing the square root key or switching between modes, learn your calculator's shortcut keys. One of the most effective ACT math calculator tips is mastering these shortcuts. Saving even a few seconds per question will spare you time for a quick review at the end of the test.
Reset Before the Test
Clear all unnecessary memory, stored programs, or apps, especially anything that could violate ACT rules. This avoids the risk of disqualification and keeps your calculator running smoothly.
Bring Extra Batteries
Even if your calculator has a reliable battery, it's smart to bring a spare, just in case. You're allowed to change batteries during the test, so be prepared.
Don't Rely on It for Everything
Your calculator is a tool, not a crutch. Some questions can be solved faster using mental math or estimation. Know when to use it and when to skip it.
Key Takeaways
When choosing a calculator for the ACT, always follow the golden rule: stick to ACT approved calculators and avoid anything with CAS, wireless features, or QWERTY keyboards. Go for a device that balances speed, simplicity, and comfort, such as a long battery life, clear display, and easy navigation. Most importantly, practice with the same calculator you plan to use on test day so there are no surprises.
To truly boost your ACT performance, pair your calculator with a strong resource like the UWorld ACT prep. It offers everything students need: a built-in calculator that mirrors test-day functionality, flashcards, a customizable notebook, a progress dashboard, and a massive question bank. With expertly written questions, a detailed study guide, and in-depth explanations for both correct and incorrect answers, UWorld helps you learn the why behind every concept, giving you confidence to earn your best ACT scores on every section.
Frequently Asked Questions (FAQs)
You can use most four-function, scientific, and graphing calculators on the ACT, as long as they don’t have CAS, QWERTY keyboards, or wireless features. For a detailed overview of the test day rules and regulations, read our guide on ACT Test Policies & Accommodations.
Yes! The TI-84 Plus is one of the most popular and fully approved calculators for the ACT. It has no CAS and meets all ACT guidelines, making it a top choice among students.
Yes, graphing calculators are allowed as long as they comply with ACT rules. Avoid models with CAS or additional features like touchscreens or wireless connectivity.
Yes, it’s a good idea to clear your calculator’s memory to remove any stored programs or apps that could violate ACT policy. This helps ensure your calculator won’t be flagged or disallowed.
