Fixture Unit Calculator IPC

Fixture Unit Calculator helps you calculate Water Supply Fixture Units (WSFU) and Drainage Fixture Units (DFU) per IPC 2024 Table 709.1. Instantly determine total fixture load for any residential or commercial plumbing system to size water supply and drainage pipes correctly. Works 100% offline on the job site. Calculate fixture units in seconds instead of manually referencing code tables - reduce errors, speed up designs, ensure full code compliance.

FEATURES

• 21 Fixture Types: Complete support for residential and commercial fixtures including sinks, toilets, showers, bathtubs, bidets, water closets, lavatories, kitchen sinks, bar sinks, washing machines, outdoor hose bibs, floor drains, urinals, water fountains, coffee machines, dishwashers, and more

• Dual Fixture Units: Calculate both WSFU (water supply) and DFU (drainage) simultaneously

• IPC 2024 Table 709.1: Accurate fixture unit values per latest 2024 International Plumbing Code standards

• Increment/Decrement Counters: Easily add or remove fixtures one at a time with plus/minus buttons

• Real-Time Totals: See total WSFU and DFU update instantly as you add fixtures

• Fixture Icons: Visual identification of fixture types for quick navigation

• Quick Input: Enter quantities directly or use counters for fast calculations

HOW IT WORKS

1. Browse the 21 fixture types (toilets, sinks, showers, bathtubs, washers, urinals, etc.)

2. Use counters to add the quantity of each fixture in your project

3. App instantly calculates total WSFU and DFU values

4. Use WSFU for water supply pipe sizing calculations

5. Use DFU for drainage pipe sizing calculations

PERFECT FOR

• Plumbers sizing supply and drainage systems for new construction

• Journeyman plumbers and apprentices learning fixture units

• Plumbing contractors and estimators calculating material requirements

• Remodel plumbers adding fixtures to existing systems

• Mechanical estimators and engineers

• Plumbing inspectors verifying system design

OPTIONAL PRO UPGRADE — $2.99 ONE-TIME IN-APP PURCHASE

The following features require a separate one-time in-app purchase. They are not required to use the calculator:

• Unlimited saved calculation history

• PDF export of results

• Dark theme

• Ad-free experience

STANDARDS & COMPLIANCE

IPC 2024 Table 709.1 Fixture Unit Values - complete fixture unit values for water supply and drainage per the latest International Plumbing Code. UPC (Uniform Plumbing Code) fixture unit equivalents. Compliant with 2024 plumbing code standards for system sizing.

PERFECT FOR

• Professional plumbers and contractors

• Journeyman and apprentice plumbers

• Mechanical engineers and estimators

• Plumbing inspectors

• Building contractors

• Plumbing educators and students

OFFLINE & PRIVACY

• Works 100% offline - calculate fixture units anywhere on the job site

• No account required - immediate access without signup

• No data collection - all calculations stored locally

• No internet dependency or cloud sync

Part of PlumbTools Suite - professional plumbing calculators and code reference tools. Calculate fixture units accurately, size systems faster, and ensure full IPC 2024 compliance with instant fixture unit calculations.