Watts For Mac

The Apple 30W USB‑C Power Adapter offers fast, efficient charging at home, in the office, or on the go. While the power adapter is compatible with any USB‑C–enabled device, Apple recommends pairing it with the 13-inch MacBook Air with Retina display for optimal charging performance.

Watts rainwater harvesting systems efficiently capture, store, pump, and treat rainwater that can be used for irrigation, restrooms, laundry, and more. High Capacity Lead Filtration System Reduce 99.2% of lead from drinking water with this under counter system that connects directly to kitchen and bathroom faucets. Watts is a nifty utility that provides detailed information about your MacBook's battery, improves on Apple's menu-bar battery item, and reminds you to calibrate (and walks you through the process. 26 records for Mac Watts. Find Mac Watts's phone number, address, and email on Spokeo, the leading online directory for contact information.

iMac (Retina 5K, 27-inch, 2020)
27-inch Retina 5K display, 3.6GHz 10-Core i9, 128GB 2666MHz DDR4 SDRAM, 8TB Solid State Drive, AMD Radeon Pro 5700 XT with 16GB memory
Power ConsumptionThermal Output
IdleCPU MaxIdleCPU Max
74W295W252 BTU/h1007 BTU/h

iMac (Retina 5K, 27-inch, 2019)

27-inch Retina 5K display, 3.6GHz Intel 8-Core i9, 64GB 2666MHz DDR4 SDRAM, 3TB Fusion Drive, AMD Radeon Pro Vega 48 with 8GB memory

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

71W

262W

242 BTU/h

895 BTU/h

iMac (Retina 4K, 21.5-inch, 2019)

21.5-inch Retina 4K display, 3.2GHz Intel 6-Core i7, 32GB 2666MHz DDR4 SDRAM, 1TB Solid State Drive, AMD Radeon Pro Vega 20 with 4GB memory

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

47W

166W

161 BTU/h

568 BTU/h

iMac (Retina 5K, 27-inch, 2017)

27-inch Retina 5K display, 4.2GHz Intel Quad-Core i7, 64GB 2400MHz DDR4 SDRAM, 3TB Fusion Drive, AMD Radeon Pro 580 with 8192MB memory

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

71W

217W

242 BTU/h

741 BTU/h

iMac (Retina 4K, 21.5-inch, 2017)

21.5-inch Retina 4K display, 3.6GHz Intel Quad-Core i7, 32GB 2400MHz DDR4 SDRAM, 512GB Solid State Drive, AMD Radeon Pro 560 with 4096MB memory

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

49W

161W

168 BTU/h

550 BTU/h

iMac (21.5-inch, 2017)

21.5-inch display, 2.3GHz Intel Dual-Core i5, 16GB 2400MHz DDR4 SDRAM, 256GB Solid State Drive

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

33W

74W

113 BTU/h

253 BTU/h

iMac (Retina 5K, 27-inch, Late 2015)

27-inch Retina 5K display, 4.0GHz Intel quad-core Core i7, 32GB 1866MHz DDR3L SDRAM, 3TB Fusion Drive, AMD Radeon R9 M390 with 2GB memory

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

63W

240W

215 BTU/h

819 BTU/h

iMac (Retina 4K, 21.5-inch, Late 2015)

21.5-inch Retina 4K display, 3.3GHz Intel quad-core Core i7, 16GB 1866MHz LPDDR3 SDRAM, 2TB Fusion Drive

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

40W

119W

136 BTU/h

406 BTU/h

Watts For Macbook Air Charger

iMac (21.5-inch, Late 2015)

21.5-inch display, 1.6GHz Intel dual-core Core i5, 16GB 1866MHz LPDDR3 SDRAM, 1TB Fusion Drive

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

33W

58W

113 BTU/h

198 BTU/h

iMac (Retina 5K, 27-inch, Mid 2015)

27-inch display, 3.3GHz Intel Core i5, 32GB 1600MHz DDR3 SDRAM, 3TB Fusion Drive, AMD Radeon R9 M290

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

70W

197W

239 BTU/h

673 BTU/h

iMac (27-inch, Late 2014)

27-inch display, 4GHz Intel Core i7, 32GB 1600MHz DDR3 SDRAM, 3TB Fusion Drive, AMD Radeon R9 M295X with 4096MB memory

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

70W

288W

239 BTU/h

983 BTU/h

iMac (21.5-inch, Mid 2014)

21.5-inch display, 1.4GHz Intel Core i5, 8GB 1600MHz DDR3 SDRAM, 500GB HDD, integrated graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

33W

68W

113 BTU/h

232 BTU/h

iMac (Late 2013)

iMac (21.5-inch, Late 2013)

21.5-inch display, 3.1GHz Intel Core i7, 16GB 1600MHz DDR3 SDRAM, 1TB Fusion Drive, NVIDIA GeForce GT 755M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

37W

136W

126 BTU/h

463 BTU/h

iMac (21.5-inch, Late 2013)

21.5-inch display, 2.9GHz Intel Core i5, 8GB 1600MHz DDR3 SDRAM, 1TB Serial ATA Hard Drive, NVIDIA GeForce GT 750M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

37W

94W

127 BTU/h

322 BTU/h

iMac (21.5-inch, Late 2013)

21.5-inch display, 2.7GHz Intel Core i5, 8GB 1600MHz DDR3 SDRAM, 1TB Serial ATA Hard Drive, Intel Iris Pro Graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

38W

91W

129 BTU/h

311 BTU/h

iMac (27-inch, Late 2013)

27-inch display, 3.4GHz Intel Core i7, 32GB 1600MHz DDR3 SDRAM, 3TB Fusion Drive, NVIDIA GeForce GTX 775M

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

78W

229W

266 BTU/h

782 BTU/h

iMac (27-inch, Late 2013)

27-inch display, 3.4GHz Intel Core i5, 8GB 1600MHz DDR3 SDRAM, 1TB Serial ATA Hard Drive, NVIDIA GeForce GTX 775M

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

80W

214W

274 BTU/h

729 BTU/h

Watts

iMac (27-inch, Late 2013)

27-inch display, 3.2GHz Intel Core i5, 8GB 1600MHz DDR3 SDRAM, 1TB Serial ATA Hard Drive, NVIDIA GeForce GT 755M

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

78W

180W

268 BTU/h

615 BTU/h

iMac (21.5-inch, Late 2011)

21.5-inch display, 3.1GHz Intel Core i3, 2GB 1333MHz DDR3 SDRAM - 2x2GB, 250GB Serial ATA hard drive, AMD Radeon HD 6750M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

80W

101W

273 BTU/h

345 BTU/h

iMac (21.5-inch, Mid 2011)

21.5-inch display, 2.5GHz Intel Core i5, 4GB 1333MHz DDR3 SDRAM - 2x2GB, 500GB Serial ATA hard drive, AMD Radeon HD 6750M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

81W

106W

276 BTU/h

362 BTU/h

iMac (21.5-inch, Mid 2011)

21.5-inch display, 2.7GHz Intel Core i5, 4GB 1333MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, AMD Radeon HD 6770M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

85W

114W

290 BTU/h

389 BTU/h

iMac (27-inch, Mid 2011)

27-inch display, 2.7GHz Intel Core i5, 4GB 1333MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, AMD Radeon HD 6770M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

135W

170W

461 BTU/h

580 BTU/h

iMac (27-inch, Mid 2011)

27-inch display, 3.1GHz Intel Core i5, 4GB 1333MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, AMD Radeon HD 6970M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

139W

195W

474 BTU/h

665 BTU/h

iMac (27-inch, Mid 2011)

27-inch display, 3.4GHz Intel Core i7, 4GB 1333MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, AMD Radeon HD 6970M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

142W

200W

485 BTU/h

682 BTU/h

iMac (Mid 2010)

21.5-inch display, 3.6GHz Intel Core i5, 4GB 1333MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, ATI Radeon 4670 graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

94W

241W

321 BTU/h

822 BTU/h

iMac (27-inch, Mid 2010)

27-inch display, 3.2GHz Intel Core i3, 4GB 1333MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, ATI Radeon 5670 graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

*

365W

*

1,245 BTU/h

iMac (27-inch, Mid 2010)

27-inch display, 3.6GHz Intel Core i5, 4GB 1333MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, ATI Radeon 5670 graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

145W

365W

495 BTU/h

1,245 BTU/h

iMac (21.5-inch, Late 2009)

21.5-inch display, 3.33GHz Intel Core 2 Duo, 4GB 1066MHz DDR3 SDRAM - 2x2GB, 500GB Serial ATA hard drive, NVIDIA GeForce 9400M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

104W

241W

355 BTU/h

822 BTU/h

iMac (21.5-inch, Late 2009)

21.5-inch display, 3.2GHz Intel Core i3, 4GB 1333MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, NVIDIA GeForce 9400M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

104W

241W

355 BTU/h

822 BTU/h

Imac power requirements

iMac (27-inch, Late 2009)

27-inch display, 3.06GHz Intel Core 2 Duo, 4GB 1066MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, ATI Radeon 4670 graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

*

365W

*

1,245 BTU/h

iMac (27-inch, Late 2009)

27-inch display, 3.33GHz Intel Core 2 Duo, 4GB 1066MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, ATI Radeon 4670 graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

*

365W

*

1,245 BTU/h

iMac (27-inch, Late 2009)

27-inch display, 2.66GHz Quad-core Intel i5, 4GB 1066MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, ATI Radeon 4850 graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

145W

365W

*

1,245 BTU/h

iMac (20-inch, Early 2009)

20-inch display, 2.66GHz Intel Core 2 Duo, 2GB 1066MHz DDR3 SDRAM - 2x1GB, 320GB Serial ATA hard drive, NVIDIA GeForce 9400M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

60.7W

108.9W

206.4 BTU/h

371.6 BTU/h

Watts For Macbook Pro

iMac (24-inch, Early 2009)

24-inch display, 2.66GHz Intel Core 2 Duo, 4GB 1066MHz DDR3 SDRAM - 2x2GB, 640GB Serial ATA hard drive, NVIDIA GeForce 9400M graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

104.4W

151.5W

355 BTU/h

515.2 BTU/h

iMac (24-inch, Early 2009)

24-inch display, 2.93GHz Intel Core 2 Duo, 4GB 1066MHz DDR3 SDRAM - 2x2GB, 640GB Serial ATA hard drive, NVIDIA GeForce GT 120 graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

116.4W

192.2W

395.8 BTU/h

653.5 BTU/h

iMac (24-inch, Early 2009)

24-inch display, 3.06GHz Intel Core 2 Duo, 4GB 1066MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, NVIDIA GeForce GT 130 graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

113.9W

208.9W

387.3 BTU/h

710.3 BTU/h

iMac (24-inch, Early 2009)

24-inch display, 3.06GHz Intel Core 2 Duo, 4GB 1066MHz DDR3 SDRAM - 2x2GB, 1TB Serial ATA hard drive, ATI Radeon HD 4850 graphics

Power Consumption

Thermal Output

Idle

CPU Max

Idle

CPU Max

125.5W

215.7W

426.7 BTU/h

733.4 BTU/h

* Information not available.

Notes

  • Power consumption data (watts) is measured from the wall power source and includes all power supply and system losses. Additional correction isn't needed.
  • CPU Max is defined as running a compute-intensive test application that maximizes processor usage and therefore power consumption.
  • These numbers reflect a 23°C (73.4°F) ambient running environment. Increased ambient temperatures require faster fan speeds which increases power consumption. At 35°C (95°F), 50W should be added to reflect increased power consumption.

Power adapters for Mac notebooks are available in 29W, 30W, 45W, 60W, 61W, 85W, 87W, and 96W varieties. You should use the appropriate wattage power adapter for your Mac notebook. You can use a compatible higher wattage power adapter without issue, but it won't make your computer charge faster or operate differently. If you use a power adapter that is lower in wattage than the adapter that came with your Mac, it won't provide enough power to your computer.

Mac notebooks that charge via USB-C come with an Apple USB-C Power Adapter with detachable AC plug (or 'duckhead'), and a USB-C Charge Cable.

Mac notebooks that charge via MagSafe come with an AC adapter with MagSafe connector and detachable AC plug, and an AC cable.

The images below show the style of adapter that comes with each MacBook, MacBook Pro, and MacBook Air. If you're not sure which model Mac you have, use these articles:

USB-C

Apple 29W or 30W USB-C Power Adapter and USB-C Charge Cable

  • MacBook models introduced in 2015 or later

Apple 30W USB-C Power Adapter and USB-C Charge Cable

  • MacBook Air models introduced in 2018 or later

Apple 61W USB-C Power Adapter and USB-C Charge Cable

  • 13-inch MacBook Pro models introduced in 2016 or later

Apple 87W USB-C Power Adapter and USB-C Charge Cable

  • 15-inch MacBook Pro models introduced in 2016 or later

Apple 96W USB-C Power Adapter and USB-C Charge Cable

  • 16-inch MacBook Pro models introduced in 2019

Make sure you're using the correct USB-C charge cable

For the best charging experience, you should use the USB-C charge cable that comes with your Mac notebook. If you use a higher wattage USB-C cable, your Mac will still charge normally. USB-C cables rated for 29W or 30W will work with any USB-C power adapter, but won't provide enough power when connected to a power adapter that is more than 61W, such as the 96W USB-C Power Adapter.

You can verify that you're using the correct version of the Apple USB-C Charge Cable with your Mac notebook and its USB-C AC Adapter. The cable's serial number is printed on its external housing, next to the words 'Designed by Apple in California. Assembled in China.'

  • If the first three characters of the serial number are C4M or FL4, the cable is for use with an Apple USB-C Power Adapter up to 61W.
  • If the first three characters of the serial number are DLC, CTC, FTL, or G0J, the cable is for use with an Apple USB-C Power Adapter up to 100W.
  • If the cable says 'Designed by Apple in California. Assembled in China' but has no serial number, you might be eligible for a replacement USB-C charge cable.

MagSafe 2

85W MagSafe power adapter with MagSafe 2 style connector

  • 15-inch MacBook Pro models introduced in 2012 through 2015

60W MagSafe power adapter with MagSafe 2 style connector

  • 13-inch MacBook Pro models introduced in 2012 through 2015

45W MagSafe power adapter with MagSafe 2 style connector

  • MacBook Air models introduced in 2012 through 2017

About the MagSafe to MagSafe 2 Converter

If you have an older MagSafe adapter, you can use it with newer Mac computers that have MagSafe 2 ports using a MagSafe to MagSafe 2 Converter (shown).

MagSafe 'L' and 'T' shaped adapters

60W MagSafe power adapter with 'T' style connector

  • 13-inch MacBook Pro models introduced in 2009
  • MacBook models introduced in 2006 through mid 2009

60W MagSafe power adapter with 'L' style connector

  • 13-inch MacBook Pro models introduced in 2010 through 2012
  • MacBook models introduced in late 2009 through 2010

85W MagSafe power adapter with 'T' style connector

  • 15-inch MacBook Pro models introduced in 2006 through 2009
  • 17-inch MacBook Pro models introduced in 2006 through 2009

85W MagSafe power adapter with 'L' style connector

  • 15-inch MacBook Pro models introduced in 2010 through 2012
  • 17-inch MacBook Pro models introduced in 2010 through 2011

45W MagSafe power adapter with 'L' style connector

Imac Pro Power Supply

  • 13-inch MacBook Air models introduced in 2008 through 2011*
  • 11-inch MacBook Air models introduced in 2010 through 2011

* Adapters that shipped with the MacBook Air (Original), MacBook Air (Late 2008), and MacBook Air (Mid 2009) are not recommended for use with MacBook Air (Late 2010) models. When possible, use your computer's original adapter or a newer adapter.

Learn more

You can get extra or replacement adapters with AC cord and plug at the Apple Online Store, an Apple Reseller, or an Apple Store.

Watts

A replacement adapter might not be the same size, color, shape, or wattage as the original adapter that came with your computer. But it should power and charge your Mac like the adapter that originally came with your computer.

If you need help using your MagSafe adapter, see Apple Portables: Troubleshooting power adapters.

Mw To W

If you're looking for a PowerPC-based power adapter, see PowerPC-based Apple Portables: Identifying the right power adapter and power cord.