How to Turn off a Normal School Calculator

Written by Travis Boylls

Last Updated: October 3, 2023 Fact Checked

Are you using a solar, graphing, scientific, or regular calculator at school but can't figure out how to turn it off? Don't worry—almost all calculators are designed to turn off automatically after a few minutes of no use. But if you need to turn the calculator off immediately, we can help! This wikiHow will teach you which button combinations to enter to turn off the most common school calculators, including Casio, Citizen, TI-84, and more.

Method 1

Method 1 of 6:

Using a Solar or Regular Calculator

Download Article

Wait for the calculator to turn off. Most calculators will turn themselves off after not being used for a few minutes. If you don't need it, just set it aside for a few minutes and it should turn off on its own.
2
Hold a button combination. One of the following combinations may shut off your calculator. Press and hold the buttons shown:
- 2 3
- 5 6
- ÷ ×
- 9 -
- 1 2 4 6
- 1 3 4 5
- 1 2 3
Advertisement
With the right combination of keys above, this should shut off the calculator.
You may be able to force a solar calculator off by placing your thumb over the entire solar strip. Once the calculator stops receiving light, it should begin to dim and then shut down.

Method 2

Method 2 of 6:

Using Citizen Calculators

Download Article

Citizen calculators shut off about eight minutes after the last input. Your calculator should shut off on its own.^{[1]
X
Research source}
2
Use a button combination to force it off. This combination of buttons will turn off most Citizen brand calculators:
- ON ÷ × % Check Correct Correct

Method 3

Method 3 of 6:

Using a Texas Instruments Graphing or Scientific Calculator

Download Article

1
Locate the 2nd and On buttons. On most TI graphic calculators, 2nd is the colored button on the left side. The color is different on different models, but it's usually stands out from the rest of the buttons. "On" is usually on the right side above the number buttons.
- On some calculator models, the "On" button may be in the lower-left corner.
This unlocks the secondary key functions for all the keys.
3
Press ON. This will turn the graphing calculator off.
- To turn off a TI Nspire, press Ctrl followed by On.^{[2]
  X
  Research source}

Method 4

Method 4 of 6:

Using a Casio Graphing or Scientific Calculator

Download Article

On most Casio graphing and scientific calculators, the "Shift" button is in the upper-left corner below the screen. The "On" button is on the right side, above the number buttons.^{[3]
X
Research source}
This button unlocks all the secondary functions for the buttons.
The secondary function for "AC" is off. This turns off the calculator.^{[4]
X
Research source}

Method 5

Method 5 of 6:

Using HP Graphing or Scientific Calculators

Download Article

On most HP calculators, the "Shift" key is on the left side. The "On" button is either on the right side, or in the lower-left corner.
This unlocks secondary key functions.
The secondary key function for "On" turns the calculator off. ^{[5]
X
Research source}

Method 6

Method 6 of 6:

Using a Casio DJ Series calculator

Download Article

The "DISP" button us usually on the left side of the calculator. Press and hold it.
This button is usually on the right side or near the top. Make sure you are still holding "DISP" while pressing "Correct".
Pressing and holding both the "DISP" and "Correct" button at the same time will turn off the calculator.^{[6]
X
Research source}

Community Q&A

Search

Add New Question

Question

How to turn off my calculator if it is a CT-555N?

Community Answer

These calculators have a sensor which detects when it is not used for an amount of time to turn off by itself.

Thanks! We're glad this was helpful.
Thank you for your feedback.
If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
Yes No

Not Helpful 48 Helpful 54
Question

How do I turn off a W39231 calculator?

Community Answer

If the calculator has solar panels, put your finger over them, or place the calculator upside down on a flat surface. It will eventually shut itself down.

Thanks! We're glad this was helpful.
Thank you for your feedback.
If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
Yes No

Not Helpful 26 Helpful 34
Question

How do I turn off a Casio DJ-120 calculator?

Community Answer

Press and hold the "display" button and "correct" button at once. Release the "display" button while still holding the "correct" button, and the calculator will turn off.

Thanks! We're glad this was helpful.
Thank you for your feedback.
If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
Yes No

Not Helpful 163 Helpful 85