Film Calculator
Calculate film development times and chemical dilutions
Back to Calculator List
Film Development: The process of converting exposed film into a visible image using chemical solutions. This calculator helps determine development times, chemical dilutions, and processing steps for various film types and developers.
Chemical Dilution Guide
Stock Solution
100% concentrate
No dilution needed
1:1 Dilution
1 part developer
1 part water
1:3 Dilution
1 part developer
3 parts water
1:9 Dilution
1 part developer
9 parts water
Popular Film Types
Ilford HP5 Plus
400 ISO
High contrast
Good grain structure
Kodak Tri-X
400 ISO
Classic look
Versatile development
Ilford FP4 Plus
125 ISO
Fine grain
Sharp detail
Kodak T-Max
400 ISO
Modern emulsion
Fine grain
Film Development Tips
- Always use fresh chemicals for best results
- Maintain consistent temperature throughout development
- Use proper agitation to ensure even development
- Test your developer dilution with a test strip first
- Keep detailed notes of your development process
- Use distilled water for mixing chemicals