Calculators

Calculate the sum of digits in a mobile number. Useful for numerology, pattern analysis, and mathematical calculations.

Compare products of different sizes to find which is cheaper per kg, litre, or item — mix units freely (500 g vs 1 kg) and see the best value ranked. Free and private.

A free online countdown timer, stopwatch, and Pomodoro timer in one — with presets, an alarm, laps, and configurable focus/break cycles. Runs entirely in your browser.

Calculate width or height for any aspect ratio (16:9, 4:3, 21:9, custom), keep images and video in proportion, and see the simplified ratio. Free and private.

Work out the tip on any bill and split it evenly between any number of people, with quick tip presets and an option to round up each person’s share. Free and private.

Split a group bill fairly: enter who paid what, split the total equally, and see the simplest way to settle up — exactly who pays whom and how much. Free and private.

Calculate your vehicle’s mileage (fuel efficiency) from the distance travelled and fuel used — in km/l or mpg — with an optional running-cost estimate.

Calculate the final price after a discount and how much you save, or find the discount percentage from the original and sale price. Optional GST/tax. Instant and free.

Scale any recipe up or down. Enter the ingredients for the original recipe, then halve, double, or resize by any multiplier — with cook-friendly fractions like ½ cup and ⅓ tsp.

Calculate the average (mean) of a set of numbers, plus the sum, count, median, minimum, maximum, range, and standard deviation. Paste any list — instant and free.

Calculate percentages every way: what is X% of Y, X is what percent of Y, and percentage increase or decrease. Fast, free, and works instantly in your browser.

Count down to any date with a live days, hours, minutes, and seconds timer. See how many days until a birthday, exam, wedding, or holiday — or how long since a past date.

Find the exact difference between two dates — in days, weeks, months, and years — plus how many weekdays and weekend days fall in between. Free and instant.

Add and subtract time durations — hours, minutes, seconds, and days — to get a total, shown as a readable duration, HH:MM:SS, and decimal hours. Free and instant.

Calculate exact age, time until next birthday, and various time-related statistics. Perfect for planning, documentation, and personal calculations.

Simple calculator to determine expiry dates based on purchase date and shelf life. Supports multiple time units and date formats for easy calculation.

Calculate cashback rewards, annual savings, and compare different cashback rates. Perfect for credit cards, shopping rewards, and financial planning.

Convert credit card or loyalty reward points into their cash value. Enter your points and the conversion rate (e.g. 10 points = ₹1) to see what they are worth in rupees.