Render Scale Calculator
Calculate internal render resolution, pixel workload, and performance impact based on your display resolution and render scale. Useful for optimizing games in Unity, Unreal Engine, and other game engines.
Instant Calculation
Calculate your internal render resolution instantly using your native resolution and render scale.
Pixel Workload
See how render scaling changes the number of pixels your game needs to process.
Performance Optimization
Compare render scales to help balance image quality and rendering performance.
Render Scale Calculator
Resolution Settings
Render Scale
Results
Render Resolution
1440 × 810
Render Scale
75%
Render Pixels
1,166,400
Pixel Workload
56.25%
Render Scale Presets
Quickly try common render scale values used for balancing image quality and rendering performance.
How to Calculate Render Scale
Render scale determines the internal resolution at which a game renders its scene. The calculator uses your native resolution and render scale to calculate the resulting render resolution and pixel workload.
Enter Native Resolution
Enter the native width and height of your display or target resolution. For example, a 1920 × 1080 display has a width of 1920 and a height of 1080.
Enter Render Scale
Enter the render scale percentage you want to use. For example, a render scale of 75% means the game renders at 75% of the native width and height.
Calculate Render Resolution
The calculator multiplies the native resolution dimensions by the render scale to determine the internal render resolution and pixel workload.
Render Scale Formula
Render Width = Native Width × Render Scale
Render Height = Native Height × Render Scale
Example: If your native resolution is 1920 × 1080 and your render scale is 75%, the resulting render resolution is 1440 × 810.
Frequently Asked Questions
What is render scale?
Render scale determines the internal resolution at which a game renders its scene relative to the native display resolution. For example, a render scale of 75% renders at 75% of the native width and height.
How do you calculate render resolution?
Render resolution is calculated by multiplying the native width and height by the render scale. For example, 1920 × 1080 at 75% render scale results in a render resolution of 1440 × 810.
Does lower render scale improve performance?
Lowering render scale reduces the number of pixels that need to be rendered, which can reduce GPU rendering workload and potentially improve performance. The actual performance improvement depends on the game and hardware.
What is a good render scale?
There is no single render scale that is best for every game or system. Common values include 50%, 67%, 75%, 83%, and 100%. The appropriate value depends on the desired balance between image quality and performance.
Does render scale affect image quality?
Yes. Lower render scales produce a lower internal rendering resolution, which can reduce image sharpness and detail. Upscaling techniques can help improve the final image quality.
Can I use this calculator for Unity and Unreal Engine?
Yes. The calculator provides general render resolution and pixel workload calculations that can be useful when planning rendering settings for Unity, Unreal Engine, and other game engines.
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