calkoo.com valid
Calkoo
Calkoo is a free online calculator hub covering date & time, unit conversion, geometry, health & fitness, and finance, available in 35+ languages. This file lists the site's highest-traffic calculators, ranked by real Google Search Console click data aggregated across all language versions.
For agents: Free online calculator hub: date and time, unit conversion, geometry, health, and finance calculators in 35+ languages; lists its highest-traffic calculators.
online calculatorsdate calculatorunit conversionage calculatortime calculator
- Authority
- 50 reach 9 · trust 5 · quality 21 · freshness 15
- Tier
- listed
- llms.txt
- https://calkoo.com/llms.txt
- Sections
- 6
- Links
- 24
- Size
- 4010 bytes
- Popularity rank
- #431033
- Categories
- Productivity
- For agents
- Informational: content or services for people, nothing to operate
- Audience
- consumers · agents can: search content · en
- First seen
- 2026-10-19T10:41:06.091Z
- Last checked
- 2026-10-19T23:20:22.407Z
- Badge
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-21T13:20:37.298Z. Cached copy · Source on calkoo.com
# Calkoo
> Calkoo is a free online calculator hub covering date & time, unit conversion, geometry, health & fitness, and finance, available in 35+ languages. This file lists the site's highest-traffic calculators, ranked by real Google Search Console click data aggregated across all language versions.
All calculators are free, require no sign-up, and work entirely client-side in the browser.
## Date & Time
- [Age and Date Difference Calculator](https://www.calkoo.com/en/age-and-date-difference-calculator): Find the exact age or time difference between two dates in years, months, weeks, days, hours and minutes.
- [Date Calculator: Add or Subtract Days](https://www.calkoo.com/en/add-or-subtract-dates): Add or subtract days, weeks, or months from any date to find a past or future date.
- [Age Calculator (How Old Am I?)](https://www.calkoo.com/en/how-old-am-i-age-calculator): Find your exact age by date of birth in years, months, weeks, and days.
- [Time Calculator](https://www.calkoo.com/en/time-calculator): Add, subtract, multiply, or divide time in hours, minutes, seconds, and milliseconds.
- [Days Ago Calculator](https://www.calkoo.com/en/days-ago-calculator): Find the exact date and weekday a given number of days in the past.
- [Days From Now Calculator](https://www.calkoo.com/en/days-from-now-calculator): Find the exact date and weekday a given number of days in the future.
- [Time From Now Calculator](https://www.calkoo.com/en/time-from-now-calculator): Find what time it will be a given number of minutes, hours, or days from now.
## Conversion & Numbers
- [Binary Converter](https://www.calkoo.com/en/binary-converter): Convert between decimal, binary, hexadecimal, and octal numbers.
- [Hexadecimal Converter](https://www.calkoo.com/en/hexadecimal-converter): Convert between hexadecimal, decimal, binary, and octal.
- [Roman Numeral Converter](https://www.calkoo.com/en/arabic-roman-numerals-converter): Convert numbers to Roman numerals or Roman numerals to numbers.
- [Body Height / Weight Converter](https://www.calkoo.com/en/body-height-and-weight-converter): Convert cm to feet/inches and kg to lbs.
- [Shoe Size Converter](https://www.calkoo.com/en/shoe-size-converter): Convert shoe sizes between US, UK, EU, cm, mm, Japan, and Korea.
## Geometry & Measurement
- [Speed Calculator](https://www.calkoo.com/en/distance-time-speed-calculator): Find speed, distance, or travel time from any two values.
- [Circle Calculator](https://www.calkoo.com/en/circle-calculator): Find area, circumference, radius, or diameter from any one value.
- [Volume Calculator](https://www.calkoo.com/en/volume-calculator): Calculate volume for common 3D shapes including tank, room, box, and container.
- [Volume of a Cylinder Calculator](https://www.calkoo.com/en/volume-of-a-cylinder-calculator): Find the volume of a cylinder from radius/diameter and height.
- [Area Calculator](https://www.calkoo.com/en/area-calculator): Calculate area for rectangle, triangle, circle, sq
…Related sites
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|---|---|---|---|---|---|---|---|
| intellweb.ai | Intellweb | documentation Ecommerce Productivity +3 | US | 61 | ✓ | ✓ | |
| adobe.com | Adobe Tools | transactional AI and machine learning Design +1 | FR | 75 | ✓ | ||
| atlassian.com | Atlassian | documentation Developer tools Productivity +1 | 74 | ✓ | ✓ | ||
| opera.com | The Opera browser overview | documentation Infrastructure AI and machine learning +2 | NL | 74 | ✓ | ||
| dropbox.com | Dropbox | documentation Productivity Business software | US | 73 | ✓ | ||
| buffer.com | Buffer API | interface APIs and SDKs Productivity | 72 | ✓ | ✓ | ||
| calendly.com | Calendly | transactional Business software Productivity | 72 | ✓ | |||
| gitee.com | Gitee | documentation Developer tools Productivity +1 | CN | 72 | ✓ | ✓ |
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