Free Online Engineering Unit Converter
Our Free Online Engineering Unit Converter is designed for engineers, students, and technical professionals who need quick and accurate conversions across multiple unit systems. From SI to Imperial, this all-in-one tool helps you perform instant conversions across pressure, flow, temperature, length, energy, and more. Whether you work in oil & gas, chemical processing, HVAC, mechanical design, or construction, this converter saves time and reduces errors in daily calculations.
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Please select a converter type from the sidebar.
Pressure Unit Converter
Pressure measurement is vital in engineering, especially in piping, boilers, and process systems. Common units include Pascal (Pa), Bar, Kilopascal (kPa), and Pounds per Square Inch (psi). For quick reference: 1 bar = 100 kPa ≈ 14.503 psi. This converter makes it easy to switch between SI and Imperial units, often required when working with international standards like ASME or API.
Temperature Unit Converter
Temperature conversions are common in thermodynamics and process calculations. Engineers often switch between Celsius (°C), Fahrenheit (°F), and Kelvin (K). For example, boiling point of water is 100 °C = 212 °F = 373.15 K. This converter ensures accurate results when designing heat exchangers, boilers, or refrigeration systems.
Length and Distance Converter
Length conversions are essential in construction drawings, piping layouts, and mechanical design. Convert easily between millimeters, centimeters, meters, inches, and feet. For example, 1 inch = 25.4 mm, a value frequently used in piping and structural engineering projects.
Area Converter
Area measurements are used in structural design, heat transfer calculations, and land surveying. Common conversions include square meters, square centimeters, square feet, and acres. For instance, 1 m² = 10.764 ft², a key conversion for international projects.
Mass and Weight Converter
Mass conversions are critical in material handling, fluid mechanics, and equipment design. Common units include grams, kilograms, pounds, and tons. Example: 1 kg = 2.205 lb. This converter simplifies calculations for procurement, shipping, and inventory control.
Energy and Power Converter
Energy and power conversions apply to thermodynamics, electrical engineering, and process design. Engineers often convert Joules, Calories, Watt-hours, and BTU. Example: 1 kWh = 3412 BTU. This ensures accurate sizing of heaters, turbines, and power systems.
Flow Rate Converter
Flow rate calculations are vital in piping, pumps, and compressors. Convert between cubic meters per hour (m³/h), liters per second (L/s), gallons per minute (GPM), and standard cubic feet per minute (SCFM). Example: 1 m³/h ≈ 4.402 GPM. This converter helps engineers handle both SI and US customary units with ease.