Tools in This Collection
Photo Print Size Calculator
Find the maximum quality print size from your image resolution
Print Size Calculator
Calculate minimum resolution needed for a target print size
Screen Resolution Calculator
Convert display dimensions to pixels per inch (PPI)
Photography Pricing Calculator
Build a session rate based on time, gear, and target hourly rate
Film Roll Cost Per Shot
Calculate true cost per frame including development and scanning
Passport Photo Tool
Format photos to passport specifications for any country
Photography Business and Printing Workflow
Getting print quality and business pricing right requires accurate numbers. These tools help you determine the maximum printable size from your image files, set photography prices that cover real costs, and understand the economics of film photography.
Print Size and Resolution
The Photo Print Size Calculator determines the maximum quality print size from your image resolution. At 300 DPI (the standard for high-quality prints), a 24-megapixel camera (6000×4000 pixels) can print at up to 20×13 inches sharply. Larger prints require lower DPI or a higher megapixel sensor. The Print Size Calculator works the other direction — enter your target print dimensions to find the minimum image resolution required. The Screen Resolution Calculator converts display size and pixel dimensions to PPI for comparing monitor and TV sharpness.
Photography Pricing
The Photography Pricing Calculator builds a session rate from the ground up: shooting time, travel, editing hours, gear depreciation, and target hourly rate. A photographer spending 2 hours shooting, 4 hours editing, with $0.50/hour gear depreciation, needing $75/hour to break even, should charge at least $475 per session. This cost-based approach prevents the common pattern of pricing by gut feel and undercharging.
Film Cost and Passport Photos
Film photography economics surprise many shooters. The Film Roll Cost Per Shot Calculator adds film purchase plus development and scanning costs to get true cost per frame. A 36-exposure roll at $15 plus $20 for development and scanning equals $0.97 per shot — which changes how you approach metering and composition compared to free digital shots. Passport photos require precise country-specific dimensions. The Passport Photo Tool formats images to 2×2 inch US standard or other country specifications with correct background requirements.
Frequently Asked Questions
What is the minimum DPI for quality photo prints?
300 DPI is the standard for high-quality prints viewed at normal distances (arm's length). For large format prints viewed from 3+ feet away, 150-200 DPI is often acceptable. The Photo Print Size Calculator shows the maximum quality print size at any DPI from your image's pixel dimensions.
How do photographers typically price their sessions?
Most photographers use one of two models: session fee plus print packages, or session fee plus per-image digital licensing. Cost-based pricing starts with your time (shooting + editing + travel), adds gear depreciation, and sets a target hourly rate. The Photography Pricing Calculator automates this calculation.
What are the US passport photo requirements?
US passport photos must be 2×2 inches (51×51mm), with the head 1–1 3/8 inches from chin to crown, taken against a plain white background with no glasses, and with a neutral expression. The Passport Photo Tool formats your image to these exact specifications.