BaseCalc Plumbing Calculator

BaseCalc Plumbing Calculator is a plumbing calculator for field math, worksheets, materials, and saved calculation history. Run pipe sizing, pressure drop, drainage, vent sizing, water heater, gas pipe, pump head, fixture unit, septic, and other plumbing calculator checks on site, then save the result for the job.

18 FIELD TOOLS FOR DAILY WORK
- Pipe Velocity: velocity from GPM and material-specific inside diameter.
- Flow Rate: GPM from velocity and material-specific inside diameter.
- Pipe Sizing: minimum supported pipe size from GPM, max velocity, and material standard.
- Pressure Drop: Hazen-Williams pressure loss for the selected material standard.
- Drainage Sizing: fixture units, slope, and water-closet service to a supported building-drain size.
- Vent Sizing: drain size and developed length to an individual or branch vent size.
- Water Heater: first-hour rating and recovery estimate.
- Gas Pipe Sizing: BTU/hr and length to minimum gas pipe size.
- Pump Head: total dynamic head from lift, friction, and pressure.
- Pipe Volume: gallons of water in a given length of pipe.
- Water Pressure: pressure and head conversion.
- Pipe Expansion: thermal expansion length change.
- Fixture Units: count common fixtures to total fixture units.
- Meter Sizing Inputs: identifies additional utility and system data required for sizing.
- Irrigation Flow: zone GPM from heads and GPM per head.
- Septic Tank: bedrooms and daily flow to minimum tank volume.
- Grease Sizing Inputs: identifies additional adopted-method inputs required for sizing.
- Backflow Loss Inputs: identifies manufacturer curve data required for pressure loss.

EVERY RESULT IS EXPLAINED
- Clear sizing messages, unsupported-range notices, and pass/fail where applicable.
- The governing limit, final answer, and calculation breakdown.
- Saved local history so you keep a job-site record.

JOB RECORDS, MATERIALS, AND WORKSHEETS
- Save job contacts with site notes.
- Build job worksheets with scope, quantities, and site notes.
- Export worksheet PDFs for internal handoff or customer context.
- Plan common pull-list items before rough-in, service, and closeout.
- Send the finished billing handoff to SpeakSheet for the final invoice.

DEVICE-LOCAL FOR THE FIELD
- Works offline by default.
- No BaseCalc account or cloud sync.
- Job contact, worksheet, setting, and calculation data stays on this device, protected by your device security.
- There is no BaseCalc cloud option.
- Dark and light themes with a high-contrast job-site interface.

BaseCalc Plumbing is a professional reference tool. Always verify against current industry standards, manufacturer data, and local codes. The authority having jurisdiction has the final say.