TThrowCalc
Standard throw

BenQ GP520: throw distance & specs

4K UHD · 2,600 lumens · throw ratio 1.2. For a 100″ screen it sits 8.7 ft away.

Quick answer

The BenQ GP520 sits 8.7 ft from a 100″ screen and about 10.5 ft from a 120″ screen, set by its official 1.2 throw ratio. At 2,600 lumens it pairs best with a matte-white screen in the dark, or an ALR screen with some ambient light.

Throw ratio

1.2

Brightness

2,600 lumens

Resolution

4K UHD

Type

LED

Specifications
Throw ratio1.2
Brightness2,600 lumens
Resolution4K UHD
HDRYes
Light sourceLED
TypeStandard throw
Input lag17.9 ms
Price~$999
Check price →

Throw-distance calculator

BenQ GP520 — distance for a 100″ screen

8.7 ft

Lens-to-screen distance. Zoom (if any) lets you fine-tune within the range.

Throw distance by screen size

How far the BenQ GP520 sits from the screen at common 16:9 sizes, across its full zoom range.

Screen (16:9)Image widthThrow distance
90″78″7.8 ft
100″87″8.7 ft
120″105″10.5 ft
150″131″13.1 ft

Every projector’s throw distance, by screen size: 100-inch screen · 120-inch screen

Which screen for the BenQ GP520?

The BenQ GP520 is a standard-throw projector, so it works with a matte-white screen in a dark room or an ALR screen if you watch with some ambient light. Match the screen size to the throw distance the calculator gives for your room.

ALR (standard throw)

Elite Screens Aeon CineGrey 3D (AR100DHD3)

1.2 gain · 100″

ALR (standard throw)

Elite Screens Sable Frame CineGrey 3D (ER100DHD3)

1.2 gain · 100″

ALR (standard throw)

Elite Screens Aeon CineGrey 5D (AR103DHD5)

1.5 gain · 103″

Frequently asked questions

For a 100″ 16:9 screen the BenQ GP520 needs about 8.7 ft from lens to screen, based on its 1.2 throw ratio. Use the calculator above for your exact screen size.

Compare with

vs

BenQ GP520 vs BenQ HT2150ST

0.69–0.83 · 2,200 lm

vs

BenQ GP520 vs Epson Home Cinema 2250

1.34–2.17 · 2,700 lm

vs

BenQ GP520 vs Epson Home Cinema 2350

1.32–2.15 · 2,800 lm

Guides for this projector

Guides

ANSI vs ISO vs LED lumens

ANSI and ISO 21118 lumens are measured the same trustworthy way (averaged across the image) and are roughly equal. CVIA is a reliable newer standard. "LED lumens" and vague "marketing lumens" are inflated — often 2 to 3 times the real ANSI figure. Always size brightness by the ANSI or ISO number.

Guides

True 4K vs pixel-shift 4K

Native 4K projectors put 8.3 million real pixels on screen; pixel-shift (XPR) projectors flash a 1080p or 2.7K chip 2-4 times per frame to approximate 4K. Native is slightly sharper on fine detail but costs much more; pixel-shift looks 4K to most eyes at normal viewing distance and covers nearly all affordable "4K" projectors.

Guides

Projector ceiling mount height

Mount the projector so its lens lines up with the top of the image when the projector has 0% offset (most do), then fine-tune with lens shift. A 100-inch 16:9 image is 49 inches (124 cm) tall, and the screen bottom usually sits 24-36 inches (60-90 cm) above the floor for seated eye level.

Not sure it fits? Run your exact screen size through the calculator.

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