AMTake’s free online converter tools handle units, currencies, colours, dates, numbers and data formats with instant precision. Convert length, weight, temperature, time zones, HEX to RGB, JSON to CSV and much more the moment you type — no downloads or sign-ups required. Perfect for students, developers, designers and professionals who need quick, accurate conversions every day. Each converter runs securely in your browser on any device, giving you dependable results in seconds, completely free of charge.
Convert Units, Currency, Time, Colour and Data
Conversion is one of those small tasks that has to be exact — a wrong unit, an out-of-date rate or a missed time-zone hour can cost you. AMTake’s converters cover measurements, money, dates and time zones, colour codes, number systems and data formats. Each one converts the moment you type, works in both directions, and uses the exact factor, live rate or standard rule for the job.
Units & measurements
Switch between cm and inches, kg and pounds, or °C and °F with the Unit Converter using precise, standard factors.
Currency & amounts
Convert money at live rates with the Currency Converter, and spell an amount out with the Number to Words tool for cheques and invoices.
Date, time & zones
Handle scheduling with the DST-aware Time Zone Converter, the Date Converter and the Unix Timestamp tool.
Colour codes
Move between HEX, RGB and HSL with the Colour Code Converter and HEX to RGB — ideal for CSS and design.
Numbers & bases
Convert between binary, decimal, octal and hex with the Number Base Converter, or to and from Roman numerals.
Data & text formats
Turn spreadsheets into CSV or JSON, or encode ASCII and Morse code.
Small Task, Zero Room for Error
Two-way, instant
Convert the moment you type, and flip the direction (A to B or B to A) with a click — no second tool and no waiting.
Exact factors & live rates
Unit, colour and base conversions use precise standard factors; currency uses the live mid-market rate, so results are reliable.
Handles the tricky cases
Daylight saving and half-hour zones, colour transparency (alpha), and data fields that contain commas are all handled correctly.
Private, nothing to install
Conversions run in your browser, so your values and files are never uploaded — only the currency tool fetches rates.
How to Convert on AMTake
- Enter or paste your value A number, an amount, a date, a colour code or a block of data.
- Pick the from and to formats Choose the units, currencies, colour models, number bases or data types you need.
- Copy your result The converted value appears instantly — copy it with one click, or download the converted file.
Everyday Conversions, Done Right
Reading a recipe or a spec sheet? Convert cm to inches or kg to pounds in a tap. Shopping or invoicing across borders? Get today’s rate with the Currency Converter, then write the amount in words for a cheque with Number to Words. Setting up a call between India and the US? The Time Zone Converter gets the daylight-saving hour right. Building a website? Turn a HEX colour into RGB. And moving data between apps? Convert a spreadsheet to CSV in seconds. Every conversion is instant, precise and free.
Frequently Asked Questions
Are these online converters free to use?
Yes. Every converter — units, currency, date and time, colour, number bases and data formats — is completely free, with no sign-up, no limits and no watermark. Convert as often as you like at no cost.
Do the converters work in both directions?
Yes. Most converters are two-way: cm to inches or inches to cm, HEX to RGB or RGB to HEX, spreadsheet to CSV or the reverse. Just swap the “from” and “to” fields — you do not need a separate tool for each direction.
How accurate are the conversions?
Unit, number-base, colour and date conversions use exact, standard factors, so they are precise. Currency conversions use the live mid-market rate, which is accurate as a reference but not the exact rate a bank will give you.
Do currency and time conversions use live, up-to-date data?
Yes. The currency converter fetches live exchange rates each time you convert, and the time zone converter applies the correct daylight-saving rule for the date you choose. Purely mathematical converters, like units and colours, need no live data.
Which converter should I use for my task?
Use the Unit Converter for measurements, the Currency Converter for money, the Time Zone and Date converters for scheduling, the Colour Code Converter for design, the number-base and Roman numeral tools for number systems, and the Excel/CSV/JSON tools for data. The cards above group them by type.
Do the converters store or upload my data?
No. Conversions run entirely in your browser, so your values, files and text are never uploaded or saved. The only exception is the currency converter, which fetches rates but never sends your amount anywhere.
Do they handle tricky cases like daylight saving or half-hour time zones?
Yes. The time zone converter is daylight-saving aware and handles half- and quarter-hour offsets (India UTC+5:30, Nepal, parts of Australia) exactly. The colour converter supports transparency (alpha), and the data converters correctly quote fields that contain commas.
Can I use the converters on my phone?
Yes. Every converter is mobile-first and works in any browser on Android and iPhone, tablets and desktops.
Do the converters work offline?
Most do, because the maths runs in your browser and keeps working after the page loads. The currency converter is the exception, since it needs an internet connection to fetch live rates.
Can I convert file and data formats like CSV, JSON or Excel?
Yes. You can turn Excel spreadsheets into CSV, JSON, HTML, XML or text, and convert between ASCII and text — useful for developers, analysts and anyone moving data between apps.
Do I need to create an account to use a converter?
No. There is no registration or login. Open any converter and start immediately — no email or personal details are collected.
Can I use these converters for work or commercial purposes?
Yes. All converters are free for personal and commercial use — developers, designers, accountants, travellers and businesses are welcome to use them at no cost.
Why does my currency conversion differ from my bank's rate?
The converter shows the mid-market rate, the midpoint of the global buy and sell price. Banks and apps add a margin and fees, so the rate you actually receive is a little worse. Use the figure here as a reference, not a guaranteed quote.
What units and formats are supported?
Units cover length, weight and temperature; currencies cover all major world currencies; colours cover HEX, RGB and HSL; number systems cover binary, octal, decimal, hexadecimal and Roman numerals; and data formats cover CSV, JSON, XML, HTML and ASCII.
Can I copy or download the converted result?
Yes. Every result has a one-click copy button, and the data-format converters let you copy or download the converted file directly.