Heating Pipe Size vs Pumping Power Calculator

Estimate required pipe diameter of a closed hydronic heating or cooling system in an instant and calculate pressure drop to determine required circulation pump characteristics (flow and head). Easy to use, quick and accurate results. Enter the required heating or cooling output and water flow and return temperatures. Choose pipe material. The recommended pipe diameter is already there, presented as a standard DN. Additionally, choose the recommended or a custom pipe diameter and specify pipe section length and fittings. Results include water flow rate, velocity, pressure drop and pressure drop per 100 m of straight pipe and can be used to determine the parameters of a circulation pump. ## Features: - Simple to use; - Suitable for hydronic (water-based) heating and cooling systems; - Suitable for a large range of heating and cooling outputs; - Predefined pipe materials; - Water temperature range from 1 to 99 ºC; - Completely independent from any manufacturers; - No login needed, no data connection needed; - No data collection; - No subscriptions, one-time purchase only; - Very quick calculation with no delays; ## Possible uses of the application: - Quickly estimate required pipe diameter when designing a hydronic (water-based) closed heating or cooling system. - Quickly determine circulation pump requirements (flow and head), whether it be a new system or a replacement pump. ## Notes: - It is recommended to calculate every section of the piping system separately and additionally check the whole system pressure drop. - The application is only useful for calculations of hydronic (water based) closed heating or cooling systems. Other systems and media are not supported. - Only metric units are supported. - The application, while accurate, is not meant as a complete replacement of specialized software for heating and cooling system design. The application doesn't require data connection. It doesn't require and doesn't collect any personal data. It also doesn't contain third-party ads or code. Also: no in-app purchases, no subscriptions.

The Pumping Power Calculator is a precision engineering utility designed for mechanical engineers, HVAC technicians, water treatment professionals, and students. It allows users to quickly and accurately determine the energy required to move fluids through a system. Whether you are sizing a new pump, evaluating an existing system's efficiency, or studying fluid mechanics, this app provides instantaneous, reliable results in a beautifully clean interface. Key Features Dual Calculation Modes: Pressure Differential: Calculate power based on direct pressure drops across the system. Pump Head & Density: Calculate power using total dynamic head and fluid density, perfect for systems moving liquids other than standard water. Universal Unit Conversion: Swap units on the fly without losing your data. Flow: m³/h, L/min, L/s, US gpm, UK gpm Pressure: bar, psi, kPa, Pa Head: m, ft Density: kg/m³, lb/ft³ Real-World Efficiencies: Input specific Pump Efficiency and Electrical Motor Efficiency percentages to go beyond theoretical physics and see exactly what your real-world power draw will be. Comprehensive Outputs: Get a complete breakdown of your system's energy requirements presented simultaneously in Kilowatts (kW) and Horsepower (hp): Hydraulic Power: The raw energy transferred directly into the fluid. Shaft Power: The mechanical power required at the pump's drive shaft. Motor Power: The total electrical power drawn from the grid.