Pipe Offset Calculator

Pipe Offset Calculator helps you calculate pipe offset, travel, and run distances for any fitting angle. Instantly solve offset geometry using trigonometric calculations for 7 common fitting angles. Supports 45-degree, 30-degree, 22.5-degree and other common fitting offsets. Works 100% offline on the job site — no subscription required. Speed up rough-in layouts, reduce measurement errors, eliminate math mistakes, and deliver precise piping installations every time.

FEATURES
• 7 Fitting Angle Support: 11.25°, 22.5°, 30°, 45°, 60°, 72°, and 90-degree fittings with automatic trigonometric calculations
• 3 Calculation Modes: Calculate travel from offset distance, calculate offset from travel distance, or calculate run from offset and travel
• Trigonometric Formulas: Travel = Offset/sin(angle), Run = Offset/tan(angle) with automatic solver
• Unit-Agnostic Input: enter offset/travel in any unit (inches, mm, cm) — results come back in the same unit
• Quick Reference: Display all 7 angle values for comparison

HOW IT WORKS
1. Select your fitting angle (45°, 30°, 22.5°, etc.)
2. Enter one known distance (offset, travel, or run)
3. Specify calculation mode (what you want to find)
4. See results with visual diagram
5. Use measurements for accurate pipe layout and cutting

PERFECT FOR
• Plumbers and professional pipefitters routing water and drain lines
• Sprinkler fitters and irrigation specialists calculating mainline offsets
• HVAC technicians routing refrigerant lines
• Gas fitters and propane installers with piping systems
• Plumbing apprentices learning offset calculations and trade math
• Plumbing contractors and foremen managing job site layouts
• Electrical conduit installers using pipe calculations for rough-in coordination

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
Trigonometric offset calculations per IRC plumbing code requirements, IBC code-compliant fitting angle standards for schedule 40 and schedule 80 pipe fittings, Rolling offset calculations for complex piping routing and layout verification.

OFFLINE & PRIVACY
• Works 100% offline - calculate offsets on any job site
• No account needed - immediate calculations
• No data collection - results stored locally
• No internet requirement

Part of PlumbTools Suite — professional plumbing calculator tools for precise installations. Calculate pipe offsets accurately and eliminate layout errors on the job site.

Recent changes:
Added a link to TradeTools — the one-app version of this calculator and 61 more, for HVAC, electrical, plumbing, fire protection, solar and carpentry. Nothing else changed.