ToolForge

Exposure Calculator

Exposure calculator: calculate EV and equivalent combinations from aperture, shutter and ISO for photography, with one-click copy and offline.

วิธีใช้งาน

Enter aperture, shutter and ISO to get EV and equivalents.

Overview

Exposure Calculator is a pro-photo tool that Exposure calculator: calculate EV and equivalent combinations from aperture, shutter and ISO for photography, with one-click copy and offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Batch convert PNG/JPG/WebP
  • Check DPI and color mode for print
  • Generate placeholders and watermarks
  • Crop/compress for social
  • Use it to cross-check “曝光计算、ev值” in reports, docs or APIs to avoid manual conversion errors

How to use

  1. 1 Drop images
  2. 2 Adjust size/quality/format
  3. 3 Compare before/after
  4. 4 Download or copy link

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • JPG drops alpha
  • Quality 70-85 balances size and fidelity
  • Process large images in batches

FAQ

Uploaded?
No, processing is local.
Batch?
Yes, multi-select or folder drop.
How is Exposure Calculator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “曝光计算、ev值” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
Tip：Tip: Bookmark this page or pin the tab; find related tools via categories and search (convert → calculate → export).
Aperture Stop ComparatorCompare two f-stops: stops apart and light ratio - for exposure and depth of field. Supports batch processing and one-click copy, offline use. Crop Factor CalculatorCrop factor calculator: calculate crop factor and 35mm equivalent from sensor size for photography, with one-click copy and offline. Depth of Field CalculatorDepth of field calculator: enter focal length, aperture, distance and sensor to get DoF, hyperfocal and CoC for photography and lens choice. Hyperfocal Distance CalculatorHyperfocal distance: get hyperfocal and DoF range by focal length, aperture and sensor for landscape and panorama focus Supports batch processing and one-click copy. Megapixel CalculatorMegapixel calculator: get total pixels and megapixels by resolution with print size and file size for photography and design. ND Filter Exposure CalculatorND filter calculator: calculate exposure time with ND filter from base shutter and stops with settings for long exposure, one-click copy and offline.

All calculations run locally in your browser; nothing is uploaded.