HydroCore Calculator

Content rating
Everyone
5+
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Content rating
Everyone
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About this app

Core Hydrology & Hydraulics Calculator is a professional engineering calculator app for civil engineers, water resources engineers, students, and site professionals.
Get fast, reliable hydrology and hydraulics results in seconds for design checks, field verification, and classroom use.

Stop wasting time with repetitive manual calculations and spreadsheets. This app helps you quickly compute flow, head loss, and discharge using widely used civil engineering formulas in a clean, easy interface.
Key formulas included:
• Manning’s Equation (open channel and pipe flow)
• Rational Method (peak runoff estimation)
• Hazen-Williams Equation (head loss or flow rate)
• Weir Flow discharge
• Orifice Flow discharge and velocity

Why this app is useful:
• Fast engineering calculations with clear outputs
• SI (Metric) and US (Imperial) unit systems
• Built-in warnings for unusual or unrealistic input ranges
• Material presets for Manning roughness coefficient (n)
• Return period factor support in Rational Method
• Practical, field-friendly design for daily engineering use
• No unnecessary complexity—focus on core results

Who it’s for:
• Civil Engineers
• Hydraulics Engineers
• Water Resources Engineers
• Drainage and stormwater designers
• Construction and site engineers
• Engineering students and educators

Core Hydrology & Hydraulics Calculator helps you save time, reduce repetitive effort, and improve consistency in day-to-day engineering calculations.

Important disclaimer:
This app is intended for preliminary calculations, educational use, and quick engineering checks. Always verify final design decisions using applicable codes, standards, project requirements, and professional engineering judgment.
If you need a reliable hydrology and hydraulics calculator for Manning, Rational, Hazen-Williams, Weir, and Orifice equations—this app is built for you.

What’s New (First Release)
Version 1.0.1
• Initial public release of Core Hydrology & Hydraulics Calculator
• Added Manning, Rational, Hazen-Williams, Weir, and Orifice calculations
• Added SI and US unit support
• Added smart warning messages and improved input validation
• Performance and UI improvements for fast engineering workflows
Updated on
Apr 27, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What’s new

Initial production release of Core Hydrology and Hydraulics Calculator with 5 essential formulas, dual SI and US units, smart input validation and warnings, PDF export and share support, and a fast offline-first experience for field and classroom use.
Content rating
Everyone
Learn more

App support

About the developer
Hanu Deepthi Sistla
appsupport187@gmail.com
Canada