Where to find your CPU temperature right now

Your CPU temperature is visible in three places: in your BIOS (the firmware that runs before Windows or Mac starts), in Windows settings if you have a recent version, or in a free monitoring program. The fastest route depends on what you want to know — if your computer is running hot right now, a program takes 30 seconds. If you want to see temperatures over time or while you game, a program is the only option.

On Windows 10 or 11, open Settings, go to System, then About, and scroll to the bottom. If you see a "Device specifications" section with processor listed, your version supports temperature reading — but you still need a program to actually see the number. On Mac, the temperature is not built into the operating system at all, so you will need a program regardless.

The simplest free programs are HWiNFO (Windows), Macs Fan Control (Mac), and Core Temp (Windows). All three sit in your system tray and show the temperature in real time without slowing your computer down.

Key Takeaways

  • CPU temperature is found through your BIOS, Windows settings, or a free monitoring program — the program route is fastest for most people.
  • Normal CPU temperature while idle is 30 to 50 degrees Celsius; under load (gaming or heavy work) it should stay below 80 to 90 degrees Celsius depending on your processor.
  • HWiNFO, Core Temp, and Macs Fan Control are free programs that show temperature in your system tray without draining battery or slowing performance.
  • If your CPU runs consistently above 90 degrees Celsius, check that your fan is spinning, dust is not blocking vents, and your thermal paste has not dried out.

Installing and using HWiNFO on Windows

Go to hwinfo.com, read the free version (not the paid one), and run the installer. When it opens, you will see a list of hardware on your computer. Look for the section labeled "CPU" or your processor name — Intel Core i7, AMD Ryzen 5, or similar. The temperature will be listed as "Package" or "Core #0", "Core #1", and so on.

Close the main window and HWiNFO will minimize to your system tray (the icons in the bottom right of your screen). Right-click the HWiNFO icon and select "Sensors only" — this opens a small window showing just the temperatures, which you can resize and leave open while you work or game. The program uses almost no CPU power, so it will not slow you down.

If you want to see how hot your CPU gets while you are using it, open the sensors window and then do whatever you normally do — browse, game, edit video. Watch the temperature climb and fall. If it hits 90 degrees Celsius or higher, your cooling system may need attention.

Checking temperature in your BIOS

Your BIOS is the lowest-level software on your computer, and it always knows the CPU temperature. To enter BIOS, restart your computer and press a key repeatedly as it boots — usually Delete, F2, or F12, depending on your motherboard. Your computer will show which key to press for a few seconds on the startup screen.

Once inside BIOS, look for a section called "Hardware Monitor", "System Information", or "PC Health Status". The CPU temperature will be listed there, usually in Celsius. Write down the number, then press Escape or select Exit to leave BIOS and return to Windows.

BIOS shows you the temperature at that moment only — it does not track changes over time. Use BIOS if you want a quick snapshot, but use a program like HWiNFO if you want to watch the temperature while you work or play.

What temperature is normal for your CPU

Normal CPU temperature depends on what your computer is doing and what processor you have. When your computer is idle (sitting at the desktop, not running programs), your CPU should be between 30 and 50 degrees Celsius. When you are using it — browsing, working in documents, light video — it should stay between 50 and 70 degrees Celsius.

When you are doing heavy work — gaming, video editing, 3D rendering, or running multiple programs at once — your CPU can safely reach 80 to 90 degrees Celsius. Some high-end processors are designed to run at 95 degrees Celsius under load. Check your processor's specifications on the manufacturer's website (Intel or AMD) to see the maximum safe temperature for your exact model.

If your CPU regularly hits 95 degrees Celsius or higher during normal use, or if it throttles (slows down to cool itself), your cooling system needs attention. This usually means dust in the heatsink, a fan that has stopped spinning, or thermal paste that has dried out.

Why your CPU temperature matters

Your CPU generates heat when it works, and if that heat builds up, the processor will slow itself down to cool off — this is called throttling. When throttling happens, your games stutter, your video editing slows to a crawl, and your computer feels sluggish. Worse, sustained high temperatures shorten the lifespan of your processor.

Checking your CPU temperature tells you whether your cooling system is working. A healthy cooling system keeps your CPU cool enough that it never needs to throttle. If your temperature is creeping up over weeks or months, it usually means dust has built up in your heatsink or fan, and cleaning it out will bring the temperature back down.

Temperature also tells you whether your computer is suitable for what you are trying to do. If you want to game or edit video and your CPU hits 95 degrees Celsius within 10 minutes, your cooling system may not be powerful enough for that workload, and you may need to upgrade your case fans or heatsink.

Monitoring temperature on a Mac

Mac does not show CPU temperature in System Preferences or Activity Monitor. read Macs Fan Control from macsfancontrol.com (free version), install it, and open it. You will see your CPU temperature listed as "CPU Core" or "CPU Package", along with your GPU temperature and fan speeds.

Macs Fan Control also lets you set custom fan curves — you can tell your Mac to spin the fans faster when the CPU gets hot, which keeps temperatures lower. The default settings are usually fine, but if your Mac is running hot, you can increase the minimum fan speed to 3000 or 4000 RPM.

Normal temperature on a Mac is the same as Windows: 30 to 50 degrees Celsius idle, 50 to 80 degrees Celsius under load. If your Mac consistently runs above 85 degrees Celsius, shut it down, let it cool for 10 minutes, and check that the vents on the bottom and sides are not blocked by dust or a case.

Cleaning dust to lower CPU temperature

If your CPU temperature is high, the first thing to check is dust. Dust blocks airflow through your heatsink and case fans, which traps heat inside your computer. Shut down your computer completely, unplug it, and wait 5 minutes for it to cool.

Open your case (usually a few screws on the side panel). Look at the heatsink — the metal fins attached to your CPU — and the case fans. If you see dust caked on the fins or fan blades, use a can of compressed air to blow it out. Hold the can upright, use short bursts, and keep the nozzle 6 inches away from the components. Do not touch the components themselves.

Pay special attention to the area between the heatsink fins and the case fans. Dust collects there and blocks the airflow that cools your CPU. After cleaning, close your case, plug in your computer, and check the temperature again with HWiNFO or Macs Fan Control. In most cases, cleaning dust will drop the temperature by 10 to 20 degrees Celsius.

Frequently Asked Questions

Is 80 degrees Celsius too hot for my CPU?

It depends on what your CPU is doing and what processor you have. If you are gaming or doing heavy work and your CPU hits 80 degrees Celsius, that is normal and safe for most modern processors. If your CPU hits 80 degrees Celsius while idle or doing light work, your cooling system may need cleaning or repair.

Can I check CPU temperature on a laptop?

Yes, use HWiNFO on Windows or Macs Fan Control on Mac — the same programs work on laptops. Laptops run hotter than desktops because they have less space for cooling, so normal temperature is 5 to 10 degrees Celsius higher. If your laptop consistently runs above 90 degrees Celsius, the vents may be blocked or the internal fan may need cleaning.

What does "CPU Package" temperature mean?

CPU Package is the overall temperature of the entire processor. Individual cores (Core #0, Core #1, etc.) may be slightly hotter or cooler than the package temperature. Watch the package temperature — if it stays below your processor's maximum safe temperature, your CPU is fine.

Will checking CPU temperature slow my computer down?

No. Programs like HWiNFO and Core Temp use less than 1 percent of your CPU power. You can leave them running in the background all day without any slowdown.

What should I do if my CPU temperature keeps climbing?

First, clean the dust out of your heatsink and case fans with compressed air. If the temperature is still high, check that your case fans are spinning — if a fan has stopped, it needs to be replaced. If fans are spinning and dust is gone, your thermal paste (the compound between the CPU and heatsink) may have dried out and need replacement, which requires opening your computer and reapplying it.