FitterWelder Pro

FitterWelder Pro is a professional field calculator designed for pipefitters, welders, and installation crews working on construction sites and industrial projects.
Whether you're calculating a rolling offset, a saddle cut template, pipe slope, or measuring a route from a diagonal dimension — FitterWelder Pro gives you the answer in seconds, directly on your phone.
FITTER MODULES:

Cut List — generate precise cut lists for pipe spools and fabrication
DN ↔ mm Table — instant lookup of pipe dimensions, wall thickness and weights
Elbow Cut Calculator — calculate cut angles for any elbow fitting
Rolling Offset — compute True Offset, Travel, Run and multiplier for any angle (45°, 22.5°, 60° or custom)
Pipe Slope — calculate rise for any pipe length and slope percentage
Saddle Cut — generate a printable 1:1 scale saddle cut template for branch connections
Pipe Route — calculate spool lengths for a 3-elbow route from offset dimensions
Route Measure — resolve horizontal and vertical legs from a diagonal field measurement

WELDER MODULES:

Pipe & Tube Calculator — wall thickness, cross-section area, weight per meter
Tank & Vessel Calculator — volume and surface area for cylinders, cones and hemispheres
Weld Calculators — heat input, electrode consumption, deposition rate
Weld Journal — log your weld records with date, joint ID and parameters

KEY FEATURES:

Works fully offline — no internet required on site
Clean, dark-themed interface optimised for bright outdoor conditions
Instant live results as you type
PDF export for saddle cut templates — print and use directly in the field
Available in English and Polish

FitterWelder Pro is built by tradespeople, for tradespeople. No subscriptions, no ads, no fluff — just the calculations you need, when you need them.