Ctrl K
Calculators, converters and generators for everyday work. Simple, fast and free.
Work out the monthly EMI, total interest and total payment for a home, car, personal or education loan, with a full repayment schedule.
Find your exact age in years, months and days from a date of birth. Also shows the weekday of birth and days left for the next birthday.
Add GST to a price or remove it from a total. Shows the CGST and SGST or IGST split for 5%, 12%, 18%, 28% or any rate.
Find a percent of a number, percentage change, and increase or decrease a number by a percent. Working is shown with every answer.
Make QR codes for links, text, WhatsApp, phone, email, SMS and Wi-Fi. Telugu text works. Download PNG or SVG with no watermark.
Check your Body Mass Index with a colour scale. Uses the WHO and Asian adult ranges and shows a healthy weight range for your height.
Convert length, weight, area, volume, temperature, speed, time and data. Includes acre, cent, gajam, quintal, tonne and tola.
Convert land area between acre, gunta, cent, sq yard (gajam), ankanam, sq ft, sq metre and hectare. Telugu unit names included.
Work out the monthly EMI, total interest and total payment for a home, car, personal or education loan, with a full repayment schedule.
Add GST to a price or remove it from a total. Shows the CGST and SGST or IGST split for 5%, 12%, 18%, 28% or any rate.
Find a percent of a number, percentage change, and increase or decrease a number by a percent. Working is shown with every answer.
Calculate simple interest, compound interest and the future value of a monthly SIP, with a year-by-year table.
Find the price after a discount, your savings, and the price with GST. Also works backwards from a sale price to the original price.
Make a GST invoice with items, taxes, discount, logo and bank or UPI details. Total in words, then print or save as PDF.
Find your exact age in years, months and days from a date of birth. Also shows the weekday of birth and days left for the next birthday.
Check your Body Mass Index with a colour scale. Uses the WHO and Asian adult ranges and shows a healthy weight range for your height.
Count the days, weeks, months and years between two dates, or add and subtract days. Shows working days and weekends too.
See the time in many cities at once with daylight saving handled. Pick a date and time and compare across 400+ places.
A stopwatch with lap times and a countdown timer with an alarm. Quick buttons for 1, 5, 10 and 30 minutes and 1 hour.
Convert length, weight, area, volume, temperature, speed, time and data. Includes acre, cent, gajam, quintal, tonne and tola.
Convert land area between acre, gunta, cent, sq yard (gajam), ankanam, sq ft, sq metre and hectare. Telugu unit names included.
Convert colours between HEX, RGB, HSL, HSV and CMYK. Get lighter and darker shades, matching colour sets and a text contrast check.
Make QR codes for links, text, WhatsApp, phone, email, SMS and Wi-Fi. Telugu text works. Download PNG or SVG with no watermark.
Make Code 128, Code 39, EAN-13 and UPC-A barcodes. Choose size and colours, then download as PNG or SVG for printing.
Create strong random passwords of 4 to 64 characters with the secure random generator of your browser. Make many at once.
Pick random numbers in any range, with or without repeats. Also picks winners from a list of names, flips a coin and rolls dice.
A full scientific calculator with brackets, trigonometry, logarithms, powers, memory keys and history. Works with your keyboard.
No tool found. Try another word.
From age and BMI to land area, time zones and invoices, these tools handle the small jobs of daily life. Everything runs inside your browser, so the numbers you type are not sent to any server.
Money and business: the EMI calculator shows the monthly payment, total interest and a month-by-month schedule for home, car, personal and education loans. The GST calculator adds or removes GST and splits it into CGST and SGST or IGST. The interest calculator covers simple interest, compound interest and SIP, and the invoice generator makes a GST invoice that you can print or save as PDF. Amounts are shown in the Indian style (lakh and crore).
Land and everyday units: the land area converter is made for Andhra Pradesh and Telangana. It converts acre, gunta, cent, sq yard (gajam) and ankanam to sq ft, sq metre and hectare. The unit converter handles length, weight, area, volume, temperature, speed, time and data, including quintal, tonne and tola. For important land or money matters, always confirm the result with your documents or the official office.
Dates, time and health: the age calculator gives your exact age and the weekday of birth in English and Telugu. The date difference calculator counts days, weeks and working days between two dates. The time zone converter helps you plan calls across countries, and the BMI calculator uses both the WHO and Asian adult ranges. It gives general information only and is not medical advice.
Generators: make QR codes and barcodes for print, strong random passwords, and random numbers for draws and games. Pick a tool above. Each one has a short step-by-step guide.
Yes. All tools on SADH.IO are free to use and need no sign-in.
No. The tools work inside your browser, so your files and text stay on your device.
Yes. They work on phones, tablets and computers.