The GRE On-Screen Calculator: What It Does, What It Can't Do, and How to Use It
Yes, the GRE gives you an on-screen calculator — but only in the Quantitative Reasoning sections, and you cannot bring your own. Here is exactly what it can do, when reaching for it costs you time, and where to practise on a working replica.
The short answer
Yes. ETS provides a basic on-screen calculator, and it appears in the Quantitative Reasoning sections only. You will not have it in Verbal Reasoning or Analytical Writing.
No, you cannot bring your own. Personal calculators are not permitted in the testing room unless they have been approved as a formal accommodation. The only personal items you may bring in are your ID and, if you choose, a mask. This is the same at a test centre and for the at-home test.
So the calculator question is settled for you: everyone gets the same tool, and the only real decision is when to use it.
What the GRE calculator can do
It is more capable than most people expect, and less capable than a scientific calculator.
| Feature | Available |
|---|---|
| Add, subtract, multiply, divide | Yes |
| Square root | Yes |
| Parentheses | Yes |
| Order of operations | Yes — applied automatically |
| Memory: recall, clear, sum (MR, MC, M+) | Yes — one memory location |
| Transfer Display to the answer box | Yes |
| Display width | 8 digits |
Source: ETS's Quantitative Reasoning overview and its on-screen calculator guidelines.
The order-of-operations point is worth dwelling on, because it is widely misreported. The GRE calculator does respect standard precedence: parentheses first, then exponentiation including square roots, then multiplication and division left to right, then addition and subtraction left to right. You do not need to break a calculation into steps to protect it from being evaluated in the wrong order.
What it can't do
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No exponent key. You can take square roots, but there is no general power function. Cubes and higher powers you enter by hand.
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No trigonometric or logarithmic functions. They are not on the GRE, so this costs you nothing.
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No scientific notation entry.
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Eight digits of display. Any result needing more will not display in full.
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Errors on undefined operations. Divide by zero, or take the square root of a negative number, and the display returns ERROR rather than a value.
That last one is occasionally useful as a signal. If you get ERROR on a problem you expected to have an answer, you have usually mis-entered the expression or mis-set the problem up.
The Transfer Display button, and where people lose points
Numeric Entry questions — the ones where you type an answer rather than choose one — include a Transfer Display button that moves the calculator's current value straight into the answer box.
It removes transcription errors, which is real value. But it introduces a different risk: the calculator's answer is not always the answer the question wants.
Two traps:
Rounding. If a question asks you to round to the nearest whole number, or to two decimal places, Transfer Display gives you the calculator's full value, not the rounded one. Transferring without reading the instruction again is a straightforward way to lose a question you solved correctly.
Form. If the answer box expects a fraction, or the question asks for a percentage, the calculator's decimal is the wrong form. Converting an exact fraction to a decimal is one of the specific cases ETS itself flags as a misuse of the calculator.
The habit that fixes both: read the answer instruction after you compute, not before. One second of checking, and Transfer Display becomes purely an accuracy gain.
When using the calculator costs you time
This is where the calculator actually affects scores, and it is not intuitive.
ETS is explicit that the calculator supplements your mathematics rather than replacing it, and it names the cases where reaching for it is a mistake:
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Simple mental arithmetic. 10 − 4, 4 × 70, √25. Typing these is slower than knowing them.
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When an exact fraction is wanted. Converting to a decimal loses precision and often makes the answer harder to match.
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When reasoning or estimation would settle it faster. A great many Quant questions — particularly Quantitative Comparison — do not need a computed value at all. They need you to see that one quantity must be larger.
Where it genuinely earns its place: long division, square roots of awkward numbers, and multi-digit arithmetic where an error would be silent.
The pattern to watch for in your own practice is the reflex reach — opening the calculator before you have decided whether the question needs one. It is a small time leak that repeats across a section. Exambank's per-question timing data makes this visible: if your slow questions cluster on arithmetic that a confident solver would do by hand, that is a habit to train out, not a knowledge gap. Our guide on quant timing and careless errors covers the review system for it.
Can we use a calculator in the GRE exam, section by section
Putting the whole policy in one place, since this gets asked in a dozen different ways:
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Quantitative Reasoning — on-screen calculator provided.
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Verbal Reasoning — no calculator. You do not need one.
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Analytical Writing — no calculator.
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GRE Subject Tests — no on-screen calculator at all.
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Your own calculator — not permitted, unless approved in advance as an accommodation.
Practise on the real layout, not on your phone
The calculator is a small interface with a specific button arrangement, and test day is the wrong moment to meet it for the first time. Two habits are worth building in advance: knowing where the memory buttons are without looking, and using Transfer Display confidently on Numeric Entry questions.
You can practise on a working replica with our free GRE calculator — same functions, same behaviour, no account needed.
Quick answers
Can you use a calculator on the GRE?
Yes, an on-screen calculator is provided, but only in the Quantitative Reasoning sections.
Does the GRE calculator have a square root button?
Yes. It also has parentheses and applies standard order of operations automatically.
Can you bring your own calculator to the GRE?
No. Personal calculators are not permitted in the testing room unless approved as an accommodation.
Is a calculator allowed in the GRE Verbal section?
No. It appears in Quantitative Reasoning only.
What does the GRE calculator look like?
A basic four-function calculator with a square root key, parentheses, three memory buttons and a Transfer Display button, showing up to eight digits.
Is the calculator the same for the at-home GRE and the test centre?
Yes — the same on-screen calculator is part of the test software in both delivery modes.
Knowing what the calculator does is the easy half. Knowing which questions deserve it is the half that moves your Quant score — practise both free with Exambank.
Karl Sachs
Karl teaches quant strategy and builds Exambank's adaptive practice engine. He has a background in applied mathematics and has tutored GRE students for six years.
