Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Studio Lighting Ratio Calculator

Determine the exact fill light power needed to achieve a target lighting ratio in studio photography. Use this when balancing key and fill lights for portraits or product shots.

Key Light Power

Key Light Distance (meters)

Fill Light Distance (meters)

Desired Lighting Ratio

Fill in the required fields to see your result.

Photography

Print Size Resolution Calculator

Calculates the uncompressed file size in megabytes required to print an image at a given size, DPI, and color depth. Use it to verify your camera file has enough resolution before sending a print to a lab.

Print Width (inches)

Print Height (inches)

Print Quality (DPI)

Color Depth

Fill in the required fields to see your result.

Key differences

	Studio Lighting Ratio Calculator	Print Size Resolution Calculator
Category	Photography	Photography
Inputs required	4	4
Result	Required Fill Light Power (W)	Required File Size (MB)
What it does	Determine the exact fill light power needed to achieve a target lighting ratio in studio photography. Use this when balancing key and fill lights for portraits or product shots.	Calculates the uncompressed file size in megabytes required to print an image at a given size, DPI, and color depth. Use it to verify your camera file has enough resolution before sending a print to a lab.