Everyday & Conversions
Currency, units, percentages, and bills — the small conversions you reach for most weeks.
Currency Converter
Convert between 15 currencies at once, with the rate shown, not hidden.
Unit Converter
Length, weight, volume, and temperature — with the conversion factor shown.
Percentage Calculator
Four common percentage problems, each one worked out step by step.
Tip & Bill Split
Tip, total, and the per-person amount, split any number of ways.
GST Calculator
Add or remove GST at any slab, with the CGST + SGST split shown.
Discount Calculator
Final price after one or two stacked discounts — and why they don't just add up.
BMI Calculator
Body mass index using the Asian/Indian-population cutoffs, not the higher Western ones.
Fuel Cost Calculator
What a trip actually costs in fuel, from distance, mileage, and today's fuel price.
Electricity Bill Estimator
Add up appliance wattage and hours of use into a monthly units and cost estimate.
Word & Character Counter
Live word, character, sentence, and reading-time count as you type or paste.