Calculators / Percentage calculator7 tools
Best percentage calculators
Percent of, percent change and more. Facts come from each tool's own pages, and every score says where it comes from. How we rank
- Tools
- 7
- Researched
- 6
- Free option
- 2
- Only listed
- 1
Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.
Made by agathox · free, no sign-up, runs in your browser
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We build this tool, so it is labelled. It is scored with the same tests as the rest, and this box never changes the ranking below.
Ranked by signals we can measure or quote: website health, the facts each tool's own pages state, and community discussion. Nothing here has been hands-on tested yet, so this is not a quality test. How the signals rank works
Quick answer
- No signup needed: Web2.0calc, agathox calculators
- Files stay on your device: Calculator Soup, agathox calculators
Based on what each tool's own pages say. A tool is left out when its pages say it varies or do not say. Details are listed under each tool.
Want two of these head to head? Compare tools side by side.
Details and sources
- Free tier
- A free account (no credit card) gives access to the community forum. The pricing page lists no usage limits for the calculator and does not say whether free users see ads on it.
- Paid plan
- Plus is listed at 0.50 euro per month or a 6 euro one-time payment (VAT included where applicable). It removes advertising and tracking across web2.0calc sites, expires with no renewal, and is sold through resellers. Enterprise is a custom quote.
- Signup
- No account needed to use the online offer; the privacy page says it can be used without disclosing your identity. Accounts are optional (forum, Plus purchase).
- Watermark
- Not stated.
- Where files go
- Site runs on Hetzner servers in Germany. Anonymized IP addresses are held in RAM and deleted after 60 minutes. Google ad cookies are used only for non-paying users who consent. The pages do not say where calculator inputs are processed.
From the tool's own pages, checked 2026-11-01. Sources: Pricing, Privacy, Terms. Prices and limits change; check the tool before you rely on them.
Details and sources
- Free tier
- Not stated.
- Paid plan
- Not stated.
- Signup
- Not stated.
- Watermark
- Not stated.
- Where files go
- Calculations are processed locally in the user's browser using JavaScript. The page says: “Calculations are processed locally in your browser using JavaScript, so the webpage does not need to interact with a server.”
From the tool's own pages, checked 2026-11-04. Sources: Home. Prices and limits change; check the tool before you rely on them.
Read automatically by a program, not by a person. Each fact quotes the sentence it came from, and a fact is shown only if that sentence is on the page. Where a page did not say, it reads “Not stated.”
Details and sources
- Free tier
- Not stated. The terms list no fees for the calculators.
- Paid plan
- Not stated.
- Signup
- No account or sign-in is mentioned in the privacy policy or terms.
- Watermark
- Not applicable.
- Where files go
- The pages do not say where calculator inputs are processed. Server logs record IP address, browser type and similar details; no retention period is given. The site uses ad partners (Raptive, Google, Amazon, Networx).
From the tool's own pages, checked 2026-11-01. Sources: Privacy policy, Terms of use. Prices and limits change; check the tool before you rely on them.
Details and sources
- Free tier
- Omni Calculator provides 3938 free calculators. The page says: “Omni Calculator . . . . . Your life in . 3938 free calculators.”
- Paid plan
- Not stated.
- Signup
- Not stated.
- Watermark
- Not stated.
- Where files go
- Not stated.
From the tool's own pages, checked 2026-11-04. Sources: Home. Prices and limits change; check the tool before you rely on them.
Read automatically by a program, not by a person. Each fact quotes the sentence it came from, and a fact is shown only if that sentence is on the page. Where a page did not say, it reads “Not stated.”
Details and sources
- Free tier
- Not stated.
- Paid plan
- Not stated.
- Signup
- Not stated. The terms describe optional-looking accounts for users who sign up, but do not say an account is needed for calculators.
- Watermark
- Not applicable.
- Where files go
- The policy says it collects values you enter and Ask AI questions, and may use them to run and improve the service and train models. It does not say whether calculations run in the browser or on a server, and gives no retention period. Ads are served by Google AdSense.
From the tool's own pages, checked 2026-11-01. Sources: Privacy policy, Terms of use. Prices and limits change; check the tool before you rely on them.
Details and sources
No facts have been read from this tool's pages yet.
Answers come from each tool's own pages (“Unclear” means they do not say). Tick “Compare” on two to four tools to read them side by side.
Also listed (1, not yet tested)
Each of these answered when we visited its site. We have not tested them or recorded facts, so they are in alphabetical order, not ranked.
- PercentageCalculator.netOpen
PercentageCalculator.net is listed for: percentage calculator.
Other Calculators rankings
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