Energy Converter supports conversions and calculations between various energy units including Joule(J), Kilojoule(kJ), Calorie(cal), Kilocalorie(kcal), Kilogram-Meter(kg·m), Kilowatt-Hour(kW·h), Watt-Hour(W·h), Metric Horsepower-Hour(ps·h), Electronvolt(eV), British Thermal Unit(btu), Foot-Pound(ft·lb), Horsepower-Hour(hp·h) and more.

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Roman Numerals Converter

Convert Roman numerals to numbers and convert numbers to Roman numerals.

1's & 2's Complement Calculator

One's Complement & Two's Complement Calculator (1's & 2's Complement Calculator) is a free online tool to find true form and one's & two's complement equivalent for a given intger number.

Sudoku Generator

Random Sudoku Generator & Solver! This Sudoku online tool offers an interactive platform for both creating and solving Sudoku puzzles.

Area Converter

Area Converter, it supports conversions and calculations between various length units including Square Meter(m²), Square Kilometer(km²), Hectare(ha), Square Decimeter(dm²), Square Centimetre(cm²), Square Millimetre(mm²), Acre(acre), Square Mile(mi²), Square Yard(yd²), Square Foot(ft²), Square Inches(in²) and more.

Energy Converter