Unit Converter

Convert length, weight, temperature, area, volume, speed, data and time, including Indian units like gaj, bigha and tola. Free.

  • 100% Free
  • Fast
  • Secure · no upload
  • No signup
Loading tool…

Calculations run on your device. Nothing you type is stored or sent anywhere.

Unit Converter: free online, fast and secure

From kilometres to miles, kilograms to pounds, Celsius to Fahrenheit or square feet to gaj, this converter handles everyday unit conversions in one place.

It includes Indian units such as tola for gold, quintal for crops, and gaj and bigha for land, and shows the value in every unit of the category at once.

How to use Unit Converter

  1. Choose a category. Length, weight, temperature, area and more.
  2. Enter value and units. Select from and to units.
  3. Read the result. Plus a table of all units.

Why use ConvertKaro Unit Converter? Free, fast and secure

Here is what makes this Unit Converter tool different from most websites.

100% Free

Every feature of this tool is free for everyone. We do not lock better quality or bigger files behind a paid plan.

Fast results

Your file is processed right inside your browser, so there is no upload or download queue. Most jobs finish in a second or two, even on a slow mobile connection.

Secure and private

Privacy is built in: the conversion runs locally with JavaScript, so your data is never sent to us or anyone else. Close the tab and everything is gone.

No signup, no watermark

No registration and no watermark, ever. What you download is exactly your file.

Works on every device

Works in Chrome, Safari, Edge and Firefox on Android, iPhone, Windows, Mac and Linux. No app to install.

Indian units

Gaj, bigha, tola and quintal alongside metric and imperial units.

ConvertKaro vs other websites and apps

ConvertKaroTypical website or app
PriceFree forever, every featureFree trial, then paid plans
Your dataStay on your deviceUploaded to a server
SignupNot neededOften required
Watermark or ads on resultNeverCommon on free plans
SpeedInstant, no upload waitDepends on upload speed
Daily limitsNoneUsually limited

Common uses for Unit Converter

  • Property and land measurements
  • Gold and jewellery weights
  • Cooking and recipes
  • Travel distances and speeds
  • Storage and data sizes

Tips for the best results

  • Bigha size varies by state; this uses a common value of 1,618.7 m² (about 0.4 acre).
  • 1 gaj = 1 square yard = 9 square feet.
  • 1 tola is about 11.66 grams.
  • Data units use 1 KB = 1024 bytes.

Good to know

Calculators are only as good as their inputs. Use the exact rate and tenure from your bank or offer letter, and remember that results are estimates for planning. Unit Converter does not store your figures, so you can use real numbers privately. For important financial decisions, confirm the final values with your bank, accountant or financial advisor.

PriceFree, no limits
ProcessingIn your browser, instant
SignupNot required
WatermarkNone
Works onAndroid, iPhone, Windows, Mac, Linux
CategoryCalculator tools

How Unit Converter keeps your numbers private

Everything you enter into Unit Converter stays on your device. The tool works offline once the page has loaded, because all the logic is in the page itself rather than on a server. We never receive, log or store your numbers, so you can use it at work, at school or for personal matters without worrying about privacy.

Using Unit Converter on your phone

On a phone, open this page in Chrome or Safari, tap the main button and pick or paste what you need. Results download straight to your phone, usually into the Downloads folder or Files app. You can also add this page to your home screen for one-tap access next time.

Who uses Unit Converter?

Unit Converter is used every day by people from many backgrounds, for example:

  • Salaried people planning loans, savings and investments
  • Shop owners and freelancers calculating GST and discounts
  • Students solving maths and finance problems
  • Families planning budgets and big purchases
  • Anyone who wants a quick, accurate answer without a spreadsheet

Supported input: Indian number format (lakh and crore) with ₹ amounts, and standard units.

Frequently asked questions

How many square feet are in a gaj?

9 square feet.

How do I convert Celsius to Fahrenheit?

Multiply by 9/5 and add 32.

Why does bigha differ between states?

Bigha is a traditional unit with different local definitions; check your state’s value for legal use.

Is Unit Converter really free?

Yes, completely free. You can use it as many times as you want, and every option on the page is included at no cost.

Is it safe to use Unit Converter online?

Yes. Your data are processed inside your own browser and are never uploaded to our servers, so nobody else can see them.

Does Unit Converter work on mobile?

Yes, the tool is built mobile-first. Open this page on your phone, add your data and download the result directly.

Do I need to install anything to use Unit Converter?

No. Unit Converter works in your web browser. There is no app, plug-in or extension to install.

Will ConvertKaro add a watermark or ask me to sign up?

No. There is no watermark, no login and no email required. Copy or download the result as it is.

Does Unit Converter work offline?

Once this page has finished loading, the tool keeps working even if your internet connection drops, because all processing happens on your device.

Related free tools

You may also find these tools useful: BMI Calculator, Percentage Calculator, Age Calculator, Discount Calculator, Date Difference Calculator.