AppEveryday practical calculators: exact age, electricity cost, map scale, and Ohm's law.
Estimate the annual electricity consumption (kWh) and cost of running your household appliances.
Calculate your exact age in years, months, days, and total days lived on Earth.
Convert measured map distances (cm) to real-world ground distances in kilometers and miles.
Calculate electrical power (W), voltage (V), current (A), and resistance (Ω) using Ohm's Law.
Convert tire, air, or industrial pressure between Bar, PSI, Hectopascals, and Atmospheres.
Convert speeds between kilometers per hour, miles per hour, nautical knots, and meters per second.