Question 1

What calculator is used on the SAT?

Accepted Answer

The SAT uses a built-in Desmos graphing calculator that appears on-screen during the entire math section. It's the same Desmos graphing calculator available on this page. You can also bring an approved handheld calculator, but most students find the built-in Desmos faster once they're comfortable with it.

Question 2

Can I use my own calculator on the SAT?

Accepted Answer

Yes. You can bring an approved graphing or scientific calculator to use alongside or instead of the built-in Desmos. However, the on-screen Desmos has advantages: it's always available, supports regressions, and is already sized to fit the test interface. Practicing with it beforehand so you're comfortable on test day is the best approach.

Question 3

What's the difference between expanded and compact mode?

Accepted Answer

Expanded mode shows the full calculator with the expression list and graph side by side, giving you more workspace. Compact mode shrinks the calculator to take up less screen space, leaving more room for the test question. On the actual SAT you can resize the calculator, so practicing in both modes helps you decide which works best for different problem types.

Question 4

What are the most useful Desmos features for SAT Math?

Accepted Answer

The most impactful features are graphing equations to find intersections visually, using tables to test values quickly, regressions for curve-fitting data problems, and sliders to explore how changing a variable affects a graph. Our guide to the 8 most important Desmos features covers each one with SAT-specific examples.

Question 5

Is the Desmos calculator available on all SAT math questions?

Accepted Answer

Yes. Unlike the old paper SAT which had a no-calculator section, the SAT makes the Desmos graphing calculator available for every math question across both modules. That said, not every question benefits from using it.

Question 6

How can I get better at using Desmos for the SAT?

Accepted Answer

Start by familiarizing yourself with the interface using the calculator on this page. Then work through actual SAT-style problems using the calculator. Our free practice test includes the same calculator built into every math question. For specific techniques, check out our guides on Desmos regressions and key Desmos features.

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