About PhotoCalcs
PhotoCalcs provides 108+ free photography calculators across 15 categories, covering exposure, depth of field, lenses, lighting, printing, video, astrophotography, composition, camera settings and the business side of photography, plus a set of reference guides. Every tool is fast, accurate, and requires no signup or account.
Whether you are calculating depth of field for a portrait session, working out the maximum shutter speed for sharp star photography, estimating video file sizes for a shoot, or figuring out your day rate as a professional photographer, PhotoCalcs has a calculator for you.
15 Categories
- 📸 Exposure: 12 calculators
- 🔍 Depth of Field: 10 calculators
- 🔭 Lens & Focal Length: 10 calculators
- 💡 Lighting: 12 calculators
- 🖨️ Printing & Display: 12 calculators
- 🎬 Video: 11 calculators
- 🌌 Astrophotography: 8 calculators
- 🖼️ Composition: 8 calculators
- ⚙️ Camera Settings: 10 calculators
- 💼 Business: 9 calculators
- 🔬 Optics: 1 calculators
- 📷 Technique: 1 calculators
- ⏱️ Workflow: 2 calculators
- 💾 Storage: 1 calculators
- 🎒 Gear: 1 calculators
- 📚 Reference: 4 guides
Our Commitment
- 1.Always free — no signup, no paywall, no limits.
- 2.Accurate formulas — based on established standards and proven calculations.
- 3.Works everywhere — phone, tablet, desktop. No app to install.
- 4.No tracking — we use minimal analytics. Your data stays on your device.