Unofficial RTX HDR Calculator

A community tool for calibrating HDR video settings. Not affiliated with NVIDIA.
Display Parameters
Enter the maximum brightness of your monitor (e.g., 400, 1000, 2500).
Choose the standard based on your room lighting and preference.
Cinema (Recommended): Caps Paper White at 203 nits. Best for dim/dark rooms. Keeps text comfortable while maximizing dynamic range.
Vivid: Scales average brightness up with your monitor's power. Best for bright rooms. Makes the image punchier but may strain eyes.
Select your preferred shadow depth.
Game Overlay Settings
Peak Brightness --
Middle Grey Derived from BT.2408
--
Contrast --
Saturation -25
Profile Inspector (HEX) 32-BIT UNSIGNED
Note: Contrast values below include the +100 offset required by NPI. Use these values directly without additional adjustment.
TrueHDR - Peak Brightness 0x00DD48FC
0x00000000
TrueHDR - Middle Grey 0x00DD48FD
0x00000000
TrueHDR - Contrast 0x00DD48FE
0x00000000
TrueHDR - Saturation 0x00DD48FF
0xFFFFFFE7
Windows 11 Setup Tips
Sources: RTX HDR Paper White & Gamma Reference Settings (u/defet_, r/nvidia) · ITU-R BT.2408-8 (PDF) · ITU-R BT.2100-3 (PDF) · View on GitHub · Buy me a coffee
Disclaimer: This is an open-source, fan-made project.
"NVIDIA", "GeForce", "RTX", and the NVIDIA logo are trademarks and/or registered trademarks of NVIDIA Corporation.
This tool is not endorsed by or affiliated with NVIDIA Corporation.
v1.5.1 (NPI Offset Clarification)