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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Angle Unit Conversions
Angle is a measure of the rotation between two intersecting lines or planes, expressed in units such as degrees, radians, or gradians. Converting between these units is essential in engineering, construction, navigation, and physics calculations, ensuring precision in measurements and designs.
Show All Angle Unit Conversions
- Convert Degrees (°) to Radians (rad): 1 ° = 0.0174533 rad
Convert Radians (rad) to Degrees (°): 1 rad = 57.2958 ° - Convert Degrees (°) to Gradians (gon): 1 ° = 1.11111 gon
Convert Gradians (gon) to Degrees (°): 1 gon = 0.9 ° - Convert Radians (rad) to Gradians (gon): 1 rad = 63.66198 gon
Convert Gradians (gon) to Radians (rad): 1 gon = 0.015708 rad
Area Unit Conversions
Area is a measure of the surface enclosed within a set of boundaries. Common units include square meters (m²), square centimeters (cm²), square feet (ft²), square inches (in²), and acres. Accurate area conversions are critical in engineering, construction, land surveying, and HVAC calculations to ensure consistency across international standards.
Show All Area Unit Conversions
- Convert Square Meters (m²) to Square Centimeters (cm²): 1 m² = 10,000 cm²
Convert Square Centimeters (cm²) to Square Meters (m²): 1 cm² = 0.0001 m² - Convert Square Meters (m²) to Square Feet (ft²): 1 m² = 10.7639 ft²
Convert Square Feet (ft²) to Square Meters (m²): 1 ft² = 0.092903 m² - Convert Square Meters (m²) to Acres (ac): 1 m² = 0.000247105 ac
Convert Acres (ac) to Square Meters (m²): 1 ac = 4046.86 m² - Convert Square Inches (in²) to Square Centimeters (cm²): 1 in² = 6.4516 cm²
Convert Square Centimeters (cm²) to Square Inches (in²): 1 cm² = 0.1550 in²
Current Unit Conversions
Electric current is a measure of the flow of electric charge in a conductor. Common units include Amperes (A), Milliamperes (mA), and kiloamperes (kA). Accurate current conversions are essential in electrical engineering, instrumentation, and process control to ensure compatibility between devices and systems.
Show All Current Unit Conversions
- Convert Amperes (A) to Milliamperes (mA): 1 A = 1000 mA
Convert Milliamperes (mA) to Amperes (A): 1 mA = 0.001 A - Convert Amperes (A) to Kiloamperes (kA): 1 A = 0.001 kA
Convert Kiloamperes (kA) to Amperes (A): 1 kA = 1000 A - Convert Milliamperes (mA) to Kiloamperes (kA): 1 mA = 0.000001 kA
Convert Kiloamperes (kA) to Milliamperes (mA): 1 kA = 1,000,000 mA
Density Unit Conversions
Density is the mass per unit volume of a substance, commonly used in fluid mechanics, material science, and process engineering. Typical units include kilograms per cubic meter (kg/m³), grams per cubic centimeter (g/cm³), and pounds per cubic foot (lb/ft³). Accurate density conversions help ensure correct calculations for mass, volume, and flow.
Show All Density Unit Conversions
- Convert kg/m³ to g/cm³: 1 kg/m³ = 0.001 g/cm³
Convert g/cm³ to kg/m³: 1 g/cm³ = 1000 kg/m³ - Convert kg/m³ to lb/ft³: 1 kg/m³ = 0.06243 lb/ft³
Convert lb/ft³ to kg/m³: 1 lb/ft³ = 16.0185 kg/m³ - Convert g/cm³ to lb/ft³: 1 g/cm³ = 62.43 lb/ft³
Convert lb/ft³ to g/cm³: 1 lb/ft³ = 0.0160185 g/cm³
Force Unit Conversions
Force is a physical quantity that causes an object to accelerate, commonly measured in newtons (N), pounds-force (lbf), and kilogram-force (kgf). Accurate force conversions are essential in mechanical design, structural analysis, and process calculations.
Show All Force Unit Conversions
- Convert Newton (N) to Pound-force (lbf): 1 N = 0.224809 lbf
Convert Pound-force (lbf) to Newton (N): 1 lbf = 4.44822 N - Convert Newton (N) to Kilogram-force (kgf): 1 N = 0.101972 kgf
Convert Kilogram-force (kgf) to Newton (N): 1 kgf = 9.80665 N - Convert Pound-force (lbf) to Kilogram-force (kgf): 1 lbf = 0.453592 kgf
Convert Kilogram-force (kgf) to Pound-force (lbf): 1 kgf = 2.20462 lbf
Length Unit Conversions
Length is a fundamental measurement of distance or dimension. Accurate length conversions are crucial in construction, piping, mechanical design, and engineering calculations. Common units include meters (m), centimeters (cm), millimeters (mm), inches (in), and feet (ft).
Show All Length Unit Conversions
- Convert Meter (m) to Centimeter (cm): 1 m = 100 cm
Convert Centimeter (cm) to Meter (m): 1 cm = 0.01 m - Convert Meter (m) to Millimeter (mm): 1 m = 1000 mm
Convert Millimeter (mm) to Meter (m): 1 mm = 0.001 m - Convert Meter (m) to Inch (in): 1 m = 39.3701 in
Convert Inch (in) to Meter (m): 1 in = 0.0254 m - Convert Meter (m) to Foot (ft): 1 m = 3.28084 ft
Convert Foot (ft) to Meter (m): 1 ft = 0.3048 m - Convert Inch (in) to Foot (ft): 1 in = 0.0833333 ft
Convert Foot (ft) to Inch (in): 1 ft = 12 in - Convert Centimeter (cm) to Inch (in): 1 cm = 0.393701 in
Convert Inch (in) to Centimeter (cm): 1 in = 2.54 cm
Pressure Unit Conversions
Pressure is the force applied perpendicular to the surface of an object per unit area. It is a fundamental parameter in engineering, especially in piping, boilers, hydraulic systems, and process industries. Engineers use various units depending on the application, country, or standard, including Pascal (Pa), Bar, Kilopascal (kPa), Pounds per Square Inch (psi), Atmosphere (atm), and Millimeter of Mercury (mmHg). Accurate pressure conversions are crucial for system design, safety, and compliance with standards like ASME, API, and ISO.
Show All Pressure Conversions- Convert kg/cm² to Pascal (Pa): 1 kg/cm² = 98,066.5 Pa
Convert Pascal (Pa) to kg/cm²: 1 Pa = 0.0000101972 kg/cm² - Convert Bar to Pascal (Pa): 1 bar = 100,000 Pa
Convert Pascal (Pa) to Bar: 1 Pa = 0.00001 bar - Convert Bar to PSI: 1 bar = 14.5038 psi
Convert PSI to Bar: 1 psi = 0.0689476 bar - Convert Atmosphere (atm) to Bar: 1 atm = 1.01325 bar
Convert Bar to Atmosphere (atm): 1 bar = 0.986923 atm - Convert Atmosphere (atm) to Pascal (Pa): 1 atm = 101,325 Pa
Convert Pascal (Pa) to Atmosphere (atm): 1 Pa = 0.00000986923 atm - Convert PSI to Pascal (Pa): 1 psi = 6,894.76 Pa
Convert Pascal (Pa) to PSI: 1 Pa = 0.000145038 psi - Convert Kilopascal (kPa) to Bar: 1 kPa = 0.01 bar
Convert Bar to Kilopascal (kPa): 1 bar = 100 kPa - Convert Kilopascal (kPa) to Pascal (Pa): 1 kPa = 1,000 Pa
Convert Pascal (Pa) to Kilopascal (kPa): 1 Pa = 0.001 kPa - Convert Kilopascal (kPa) to PSI: 1 kPa = 0.145038 psi
Convert PSI to Kilopascal (kPa): 1 psi = 6.89476 kPa - Convert Millimeter of Mercury (mmHg) to Pascal (Pa): 1 mmHg = 133.322 Pa
Convert Pascal (Pa) to Millimeter of Mercury (mmHg): 1 Pa = 0.00750062 mmHg - Convert mmHg to PSI: 1 mmHg = 0.0193368 psi
Convert PSI to mmHg: 1 psi = 51.715 mmHg - Convert mmHg to Bar: 1 mmHg = 0.00133322 bar
Convert Bar to mmHg: 1 bar = 750.062 mmHg
Temperature Unit Conversions
Temperature is a fundamental physical quantity that indicates the degree of hotness or coldness of a substance. It is widely used in engineering, thermodynamics, and process industries to ensure proper functioning of equipment like heat exchangers, boilers, refrigeration systems, and HVAC units. Engineers often need to convert between different temperature scales for calculations, design, and international standard compliance.
Show All Temperature Unit Conversions
- Convert Celsius (°C) to Fahrenheit (°F): 1 °C = 33.8 °F
Convert Fahrenheit (°F) to Celsius (°C): 1 °F = -17.2222 °C - Convert Celsius (°C) to Kelvin (K): 1 °C = 274.15 K
Convert Kelvin (K) to Celsius (°C): 1 K = -272.15 °C - Convert Fahrenheit (°F) to Kelvin (K): 1 °F = 255.9278 K
Convert Kelvin (K) to Fahrenheit (°F): 1 K = -457.87 °F - Convert Celsius (°C) to Rankine (°R): 1 °C = 493.47 °R
Convert Rankine (°R) to Celsius (°C): 1 °R = -273.15 °C - Convert Fahrenheit (°F) to Rankine (°R): 1 °F = 459.67 °R
Convert Rankine (°R) to Fahrenheit (°F): 1 °R = -459.67 °F - Convert Kelvin (K) to Rankine (°R): 1 K = 1.8 °R
Convert Rankine (°R) to Kelvin (K): 1 °R = 0.5556 K
Mass/Weight Unit Conversions
Mass or weight measures the amount of matter in an object. Conversions are essential in mechanical design, material handling, and fluid calculations. Common units include kilograms (kg), grams (g), pounds (lb), and tons (t).
Show All Mass/Weight Unit Conversions
- Convert Kilogram (kg) to Gram (g): 1 kg = 1000 g
Convert Gram (g) to Kilogram (kg): 1 g = 0.001 kg - Convert Kilogram (kg) to Pound (lb): 1 kg = 2.20462 lb
Convert Pound (lb) to Kilogram (kg): 1 lb = 0.453592 kg - Convert Kilogram (kg) to Ton (t): 1 kg = 0.001 t
Convert Ton (t) to Kilogram (kg): 1 t = 1000 kg - Convert Pound (lb) to Ton (t): 1 lb = 0.000453592 t
Convert Ton (t) to Pound (lb): 1 t = 2204.62 lb
Power Unit Conversions
Power measures the rate at which work is done or energy is transferred. Conversions are important in mechanical, electrical, and process engineering. Common units include Watt (W), Kilowatt (kW), Horsepower (hp), and BTU per hour (BTU/h).
Show All Power Unit Conversions
- Convert Watt (W) to Kilowatt (kW): 1 W = 0.001 kW
Convert Kilowatt (kW) to Watt (W): 1 kW = 1000 W - Convert Watt (W) to Horsepower (hp): 1 W = 0.00134102 hp
Convert Horsepower (hp) to Watt (W): 1 hp = 745.7 W - Convert Kilowatt (kW) to Horsepower (hp): 1 kW = 1.34102 hp
Convert Horsepower (hp) to Kilowatt (kW): 1 hp = 0.7457 kW - Convert Watt (W) to BTU/h: 1 W = 3.41214 BTU/h
Convert BTU/h to Watt (W): 1 BTU/h = 0.293071 W
Time Unit Conversions
Time is a fundamental quantity in engineering, science, and daily life. Accurate conversions between different units are essential in process calculations, scheduling, and system design. Common units include seconds (s), minutes (min), hours (h), and days (d).
Show All Time Unit Conversions
- Convert Seconds (s) to Minutes (min): 1 s = 0.0166667 min
Convert Minutes (min) to Seconds (s): 1 min = 60 s - Convert Seconds (s) to Hours (h): 1 s = 0.000277778 h
Convert Hours (h) to Seconds (s): 1 h = 3600 s - Convert Minutes (min) to Hours (h): 1 min = 0.0166667 h
Convert Hours (h) to Minutes (min): 1 h = 60 min - Convert Hours (h) to Days (d): 1 h = 0.0416667 d
Convert Days (d) to Hours (h): 1 d = 24 h - Convert Seconds (s) to Days (d): 1 s = 0.0000115741 d
Convert Days (d) to Seconds (s): 1 d = 86400 s - Convert Minutes (min) to Days (d): 1 min = 0.000694444 d
Convert Days (d) to Minutes (min): 1 d = 1440 min
Volume Unit Conversions
Volume represents the space occupied by a substance or object. Accurate volume conversions are crucial in engineering, fluid mechanics, chemical processes, and everyday measurements. Common units include cubic meters (m³), liters (L), milliliters (mL), cubic feet (ft³), and gallons (gal).
Show All Volume Unit Conversions
- Convert Cubic Meters (m³) to Liters (L): 1 m³ = 1000 L
Convert Liters (L) to Cubic Meters (m³): 1 L = 0.001 m³ - Convert Cubic Meters (m³) to Milliliters (mL): 1 m³ = 1,000,000 mL
Convert Milliliters (mL) to Cubic Meters (m³): 1 mL = 0.000001 m³ - Convert Cubic Meters (m³) to Cubic Feet (ft³): 1 m³ = 35.3147 ft³
Convert Cubic Feet (ft³) to Cubic Meters (m³): 1 ft³ = 0.0283168 m³ - Convert Liters (L) to Milliliters (mL): 1 L = 1000 mL
Convert Milliliters (mL) to Liters (L): 1 mL = 0.001 L - Convert Liters (L) to Gallons (gal): 1 L = 0.264172 gal
Convert Gallons (gal) to Liters (L): 1 gal = 3.78541 L - Convert Cubic Feet (ft³) to Gallons (gal): 1 ft³ = 7.48052 gal
Convert Gallons (gal) to Cubic Feet (ft³): 1 gal = 0.133681 ft³
Volumetric Flow Rate Unit Conversions
Volumetric flow rate measures the volume of fluid passing through a cross-section per unit time. It is widely used in piping, pumps, HVAC, and chemical processes. Common units include cubic meters per hour (m³/h), liters per second (L/s), gallons per minute (GPM), and cubic feet per minute (CFM).
Show All Volumetric Flow Rate Unit Conversions
- Convert Cubic Meters per Hour (m³/h) to Liters per Second (L/s): 1 m³/h = 0.27778 L/s
Convert Liters per Second (L/s) to Cubic Meters per Hour (m³/h): 1 L/s = 3.6 m³/h - Convert Cubic Meters per Hour (m³/h) to Gallons per Minute (GPM): 1 m³/h = 4.40287 GPM
Convert Gallons per Minute (GPM) to Cubic Meters per Hour (m³/h): 1 GPM = 0.227124 m³/h - Convert Cubic Meters per Hour (m³/h) to Cubic Feet per Minute (CFM): 1 m³/h = 0.588578 CFM
Convert Cubic Feet per Minute (CFM) to Cubic Meters per Hour (m³/h): 1 CFM = 1.699 m³/h - Convert Liters per Second (L/s) to Gallons per Minute (GPM): 1 L/s = 15.8503 GPM
Convert Gallons per Minute (GPM) to Liters per Second (L/s): 1 GPM = 0.06309 L/s - Convert Liters per Second (L/s) to Cubic Feet per Minute (CFM): 1 L/s = 2.11888 CFM
Convert Cubic Feet per Minute (CFM) to Liters per Second (L/s): 1 CFM = 0.472 L/s - Convert Gallons per Minute (GPM) to Cubic Feet per Minute (CFM): 1 GPM = 0.133681 CFM
Convert Cubic Feet per Minute (CFM) to Gallons per Minute (GPM): 1 CFM = 7.48052 GPM