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Dev tools · alternatives · 2026

24 alternatives to CalcFlip

Free instant converters military time, Roman numerals & more

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Calculator to perform elementary operations on units of time

    2017 · 8mobile.org · its alternatives →

  2. 2AU

    I find myself having to convert a lot of unix timestamps to a human readable format, but most of the online calculators I found don't include the micro or nanoseconds in the human readable output. It's a small detail, but I find myself having to manually space out the timestamp frequently. I'm learning frontend development, so I made this converter to hopefully make it easier to convert timestamps. Welcome to any feedback :)

    2023 · justquickmath.com · its alternatives →

  3. 3

    Simple tool to share your availability as plain text. Select time slots, convert timezones, copy and send. No calendar links needed.

    2020 · whattime.today · its alternatives →

  4. 4

    Convert celsius to fahrenheit

    2025 · ctoftemp.com · its alternatives →

  5. 5

    Convert temperature between Celsius, Fahrenheit, and Kelvin.

    2025 · converttemperature.com · its alternatives →

  6. 6

    Celsius to fahrenheit converter

    2025 · its alternatives →

  7. 7

    K to f converter

    2025 · vacancybee.com · its alternatives →

  8. 8

    Free online unit converter & calculator tool

    2025 · its alternatives →

  9. 9

    The calculator that actually understands time

    Jul 2026 · tcalc.it · its alternatives →

  10. 10

    Easily convert any time to multiple time zones in seconds

    Jun 2026 · meeedly.com · its alternatives →

  11. 11

    For All Type of Online Calculator & Metric Conversions.

    2020 · chromewebstore.google.com · its alternatives →

  12. 12

    Time calculator

    2025 · timecalculator.in · its alternatives →

  13. 13

    Free online converter for 80+ units & 140+ currencies

    May 2026 · unit-converter.co · its alternatives →

  14. 14

    Find free military time converter and time charts in pdfs.

    Mar 2026 · militarychart.com · its alternatives →

  15. 15

    your ultimate time calculation tool – fast and accurate

    2024 · its alternatives →

  16. 16

    Time zone converter for 244 countries and 400+ cities

    Jan 2026 · timesyncer.com · its alternatives →

  17. 17

    Accurate temperature converter

    2025 · its alternatives →

  18. 18

    Currency Converter – Just 1-click away! 💱⚡

    2025 · chromewebstore.google.com · its alternatives →

  19. 19

    World Clock maps, Time Converter&Calculator, Time Creator

    2018 · play.google.com · its alternatives →

  20. 20

    Easily convert timezones worldwide in one click

    2025 · timezoneconverter.co · its alternatives →

  21. 21

    The fastest, clutter-free Epoch & Unix timestamp converter

    Sep 2026 · timestampeasy.com · its alternatives →

  22. 22

    Instant global time zone conversions with ease

    Jul 2026 · freewww.com · its alternatives →

  23. 23

    Dates, time, and math calculators — free, no signup

    Aug 2026 · calcdaystime.com · its alternatives →

  24. 24

    Features: 200+ unit converters in Area, Length, Mass, Speed, Temperature, and Time categories; Precision: up to 28 decimal places; Conversion formulas with examples; Neat UI with light/dark theme. Enjoy using it.

    2024 · betaconvert.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →