How to use
How to use the Flow Rate Calculator
Flow Rate Calculator is built for contractors who need a practical flow rate calculator during estimating, dispatch planning, or proposal review. Use it to turn job details into a clear working number before you finalize pricing in Dabe or your operating system.
When to use this flow rate calculator
Use this for plumbing, hydronic, or fluid-flow checks when you know either diameter and velocity or total volume over time.
Step-by-step workflow
Work through the fields in order. The calculator is designed so the most important job inputs come first and supporting assumptions follow after.
- 1.Choose diameter and velocity when you know pipe size and movement speed.
- 2.Choose volume and time when you measured how much fluid moved over a period.
- 3.Select the correct units before calculating so the conversion is applied correctly.
How to read the result
The result is shown across cubic feet, cubic meters, gallons, and liters per second, minute, and hour so the team can use the unit that matches the job.
Before you use the number in an estimate
Review the output against your company pricebook, local market, jobsite constraints, and customer expectations. If the result affects equipment sizing, margin, financing, or scope, document the assumptions in the estimate notes so the team can audit the decision later.