Most iPhone users will be aware of their device's built-in calculator, but not everyone will know some of the tricks that you can perform with the app that can save you time. Here are some of our favorite tips.

1. Swipe to Delete Numbers

It's a common misconception that if you type the wrong number into the Calculator app, you have to start the whole sum all over again. Happily, that isn't the case: Simply swipe right or left with a finger across the number display to remove the last number you typed, and repeat the action if necessary to remove several numbers.

calculator

2. Scientific calculator

The default calculator app includes a built-in scientific calculator that you can use to perform logarithms, square roots, trigonometric calculations, and more advanced math equations.

calculator
To access the scientific calculator, simply rotate your iPhone to landscape mode. If it's not showing up, make sure the portrait orientation lock is disabled in Control Center. To switch back to the regular calculator, rotate your phone to portrait mode.

3. Copy and Paste

You don't need to memorize the results of your calculations to input them into other apps. Use the clipboard functions instead - just long press on the number field to copy or paste the result.

calculator

4. Copy Last Result

If you've switched to another app, you can still quickly paste the last figure that you calculated without returning to the calculator to copy it.

calculator
Using either a swipe up or a swipe down, launch the Control Center on your iPhone, then long press the Calculator button, and you'll see a handy option to Copy Last Result.

5. Spotlight Calculations

Did you know that calculator functions are built into Spotlight Search on your iPhone?

spotlight
Simply swipe down from the Home screen to bring up Spotlight, and you can perform basic calculations by typing them directly into the Search field at the top of the screen without having to open the Calculator app.

Bonus Tip for Apple Watch Users

The Calculator app on Apple Watch comes with a couple of additional features that make short work of calculating how much you should tip and how much each person in a group owes if you're splitting a bill.

The steps below show you how it's done. Note that the two features can be used together, but you can also use them independently by selecting a 0% tip and changing the number of people, or changing the tip and leaving the People field set to 1.

  1. Launch the Calculator app on your Apple Watch.
  2. Enter the total amount of the bill.
  3. Tap the TIP button in the top-right corner, just left of the divide button.
  4. With the Tip field highlighted in green, turn your watch's Digital Crown to change the percentage.
  5. To split the bill between a group of people, tap People and then use the Digital Crown to change the number (the maximum is 50).apple watch split the bill tip

You'll see the total amount below the two fields change to reflect your tip adjustments, and the amount below that will change depending on how many people are paying.

Here's another little tip: If you don't use the TIP function, you can actually change the button on the calculator layout to a standard percentage (%) function. Simply press firmly on the main calculator screen and tap either Tip Function or Percent.

Top Rated Comments

osta.doc Avatar
15 months ago
Why don’t go ahead and add this calculator app to the iPads? I had no idea that Apple didn’t install calculators on iPads, until I bought an iPad Pro a month ago.
Score: 22 Votes (Like | Disagree)
glenthompson Avatar
15 months ago
For us long time HP calculator users the lack of RPN makes it a no go. I willingly pay for 3rd party calculators with RPN.
Score: 9 Votes (Like | Disagree)
femike Avatar
15 months ago
Any news on the Apple's calculator and weather app for the iPad? After 10 years of developer time it should be almost ready by now.
Score: 8 Votes (Like | Disagree)
Mr. Awesome Avatar
15 months ago

just had to look up RPN in Wikipedia... ?
Lack of Calculator on IPad is worse - to me ?
According to Siri knowledge, it stands for Radio Philippines Network.
Score: 6 Votes (Like | Disagree)
citysnaps Avatar
15 months ago
I've pretty much forgotten how to use a non-RPN calculator.
Score: 6 Votes (Like | Disagree)
thisisnotmyname Avatar
15 months ago
article author: what did you buy for $72.5k that you are paying a 20% tip on?
Score: 4 Votes (Like | Disagree)

Top Stories

REC ASA CODE2016 20160601 205816 2745

Elon Musk Reportedly Demanded to Become Apple CEO as Part of Potential Tesla Acquisition [Update: Musk Denies]

Friday July 30, 2021 9:04 am PDT by
Tesla CEO Elon Musk reportedly once demanded that he be made Apple CEO in a brief discussion of a potential acquisition with Apple's current CEO, Tim Cook. The claim comes in a new book titled "Power Play: Tesla, Elon Musk and the Bet of the Century," as reviewed by The Los Angeles Times. According to the book, during a 2016 phone call between Musk and Cook that touched on the possibility of ...
General Apps Messages

Android iMessage Competitor Puts Pressure on Apple

Friday July 30, 2021 3:15 am PDT by
Google and the three major U.S. carriers, including Verizon, AT&T, and T-Mobile, will all support a new communications protocol on Android smartphones starting in 2022, a move that puts pressure on Apple to adopt a new cross-platform messaging standard and may present a challenge to iMessage. Verizon recently announced that it is planning to adopt Messages by Google as its default messaging...
Apple watch series 5 new case material made of titanium 091019

Titanium Apple Watch Series 6 Models Currently Widely Unavailable

Sunday August 1, 2021 6:21 am PDT by
Models of the Apple Watch Series 6 with titanium cases part of the "Apple Watch Edition" collection is currently widely unavailable for pick-up in several of Apple's retail stores in the United States and is unavailable entirely for delivery in major markets. Noted by Bloomberg's Mark Gurman in the latest edition of his "Power On" newsletter, titanium models of the Apple Watch Series 6,...
ifixit iphone12 mini

Apple to Make Space for Larger Batteries in iPhones, iPads, and MacBooks By Adopting Slimmer Peripheral Chips

Monday August 2, 2021 2:12 am PDT by
For future iPhones, iPads, and MacBooks, Apple plans to use smaller internal components in an effort to increase the size of the device's battery, according to DigiTimes. Image Credit: iFixit Specifically, Apple plans to "significantly increase the adoption" of IPDs or integrated passive devices for the peripheral chips in its products. These news chips will be slimmer in size and allow for...
Flat 2021 MacBook Pro Mockup Feature

Unreleased Apple Macs and Apple Watches Listed in Eurasian Database Ahead of Fall Product Launches

Monday August 2, 2021 9:34 am PDT by
Apple is preparing for a slew of fall product launches according to new filings that showed up today in the Eurasian Economic Commission database. There are listings for new Mac and Apple Watch models, all of which have previously unknown model identifiers that indicate that they're upcoming devices. There are six new Apple Watch identifiers, including A2473, A2474, A2475, A2476, A2477, and...
a15 chip

iPhone 13 and Redesigned MacBook Pro Chip Production Hit With Gas Contamination

Friday July 30, 2021 5:44 am PDT by
The most important TSMC factory that manufactures Apple's chips destined for next-generation iPhone and Mac models has been hit by a gas contamination, according to Nikkei Asia. The factory, known as "Fab 18," is TSMC's most advanced chipmaking facility. TSMC is Apple's sole chip supplier, making all of the processors used in every Apple device with a custom silicon chip. Industry...
iPhone 13 Wi Fi 6E feature update

Wi-Fi 6E Explained: What It Could Mean for iPhone 13 and Beyond

Monday August 2, 2021 8:00 am PDT by
The iPhone 13 is widely expected to come with Wi-Fi 6E capabilities, and while it may seem rather nuanced to the average consumer, with only improved speeds and being "up to date" in the realm of Wi-Fi technology, it's actually a fairly significant improvement, laying the groundwork for much of what we know the future holds. To truly understand Wi-Fi 6E, MacRumors sat down for an exclusive...
youtube premium lite

YouTube Tests Cheaper 'Premium Lite' Subscription for Ad-Free Viewing

Monday August 2, 2021 3:22 am PDT by
YouTube is piloting a new cheaper subscription tier in Europe called "Premium Lite," which offers ad-free viewing minus YouTube Premium's other features. First spotted by a user on ResetEra and subsequently confirmed by Google, the "Lite" plan means users who aren't interested in offline downloads or background playback can still enjoy YouTube videos on web and mobile app without being...
iPhone 13 Always On Feature

iPhone 13 to Bring Over a Major Feature From the Apple Watch

Wednesday July 28, 2021 2:21 am PDT by
Apple's upcoming iPhone 13 lineup will feature an always-on display akin to the Apple Watch Series 5 and Series 6, according to recent reports. In his weekly Power On newsletter, Bloomberg journalist Mark Gurman, who often reveals accurate insights into Apple's plans, said that the iPhone 13 may feature an Apple Watch-inspired always-on mode. The Apple Watch Series 5 and Apple Watch...
COVID19 Digital Wallet Apple Wallet

Australian Government Now Offering COVID-19 Digital Vaccination Certificates for Apple Wallet

Monday August 2, 2021 12:04 am PDT by
The Australian government has introduced support for adding COVID-19 vaccination digital certificates to Apple Wallet via the Express Plus Medicare app on iOS. Image credit: Tap Down Under As spotted by Tap Down Under, users who have received two doses of either the AstraZeneca or Pfizer vaccine now have access to the digital certificate through their Medicare online account or via the Medica...