Overview
Perform common stormwater calculations quickly using Rational Method, Tc, and Detention Volume tools.
StormCalc is your all-in-one toolkit for stormwater and dam volume calculations. Designed for civil and hydraulic engineers, consultants, and field practitioners, this tool streamlines common hydrological calculations into a single, easy-to-use Chrome extension Features: Rational Method: -Quickly estimate peak flow (Q) using runoff coefficient, intensity, and area. Time of Concentration (Tc): -Calculates Tc using the Bransby-Williams method with flexible unit inputs. Detention Volume Calculator: -Compares pre- and post-development scenarios with auto-generated hydrograph and required detention storage. Manning’s Equation (NEW): -Computes flow rate for both circular and rectangular pipes with built-in roughness coefficients. Dam Volume Estimators: -Quick Method -Square Dam -Circular Dam -Gully Dam
Details
- Version1.0.3
- UpdatedJanuary 18, 2026
- Offered byashainp
- Size3.89MiB
- LanguagesEnglish
- DeveloperFlussig Engineers
116 Bathurst St Hobart, TAS 7000 AUEmail
ashainperera95@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
