Can I use this for Black Friday sales?

Yes. Enter the list price and discount percent shown on the tag.

Are my numbers sent online?

No. All math runs locally in your browser.

Sale price and savings.

Theme

Private by design: This tool runs in your browser — your data is not uploaded.

Original price ($)

Discount (%)

A $100 item with a 25% discount costs $75 — you save $25. Enter any price and discount percent for instant results.

Example: Price $100 · 25% off → Pay $75 · Saved $25

Can I use this for Black Friday sales?: Yes. Enter the list price and discount percent shown on the tag.
Are my numbers sent online?: No. All math runs locally in your browser.

Last updated: 2026-06-03