Image File Size Calculator
Estimate image file size from width, height, format, and quality. Plan JPG, PNG, WebP, and AVIF image sizes before uploading.
Calculate the target first, then convert, compress, resize, or clean the image with AI when needed.
Calculate File Size
Calculate dimensions, compression, file size, print size, and web image budget from one set of inputs.
2,073,600 total pixels, 2.07 MP.
Estimated WEBP output at 80% quality.
Save about 950 KB to reach 250 KB.
Estimated resized file: 113 KB.
6.40 x 3.60 in
At 300 DPI. Try 300 for high-quality prints or 150 for larger viewing-distance prints.
125 KB each
Current estimate is 3.54 MB for 8 images against a 1,000 KB budget.
Estimate image file size before upload
Large images slow down landing pages, ecommerce product pages, and blog posts. This image file size calculator gives a quick planning estimate from dimensions and quality.
Use it to decide whether an image should be compressed, resized, converted to WebP or AVIF, or sent through AI compression.
Image planning targets
Frequently asked questions
Is the file size estimate exact?
No. Real file size depends on image detail, format encoder, metadata, and transparency. The calculator gives a practical planning estimate.
Which image format is usually smallest?
AVIF and WebP are often smaller than JPG or PNG for web images, but compatibility and image content matter.
What size should website images be?
For many content images, keeping files under 200 KB is a good target. Hero images may be larger if carefully optimized.
Plan the image, then improve it
Use free calculators for sizing and compression decisions, then use Photo Cut tools when the image needs AI cleanup, watermark removal, logo removal, or smarter compression.