Offshore Structural Engineering Tools
Professional calculators for jacket platforms, pile design, wave load analysis, cathodic protection, steel member weights and wind loads. All calculations run in your browser — no data is sent to any server.
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Disclaimer: These tools are for preliminary estimation only. Always verify results with qualified engineers and applicable design codes (API RP 2A-WSD, ISO 19902, DNVGL-ST-0126, API RP 2GEO). Do not use for final design without independent verification.
Morison Wave Force Calculator
Drag + Inertia forces on cylindrical members
Wave Length L (m)—
Max Drag Force Fd (kN/m)—
Max Inertia Force Fi (kN/m)—
Total Force per metre (kN/m)—
Total Force on depth d (kN)—
Jacket Pile Size Estimator
Preliminary pile diameter & wall thickness
Recommended Pile OD (mm)—
Wall Thickness (mm)—
Recommended Steel Grade—
Est. Axial Load per Pile (kN)—
API RP 2A Pile Axial Capacity
Skin friction + tip resistance
Skin Friction Qs (kN)—
Tip Resistance Qt (kN)—
Total Capacity Qu (kN)—
Allowable Load (FOS=2.0)—
Offshore Steel Member Weight
Pipe, I-beam, box section weights
Cross-sectional Area (cm²)—
Weight per metre (kg/m)—
Total Weight (kg)—
Total Weight (tonnes)—
Cathodic Protection Anode Calc
Sacrificial anode weight & quantity
Total Current Required (A)—
Total Ah Required—
Net Anode Weight Required (kg)—
Number of Standard Anodes—
Wind Load Calculator
Wind force on offshore topsides & decks
Dynamic Pressure q (Pa)—
Wind Force Fw (kN)—
Wind Pressure (kPa)—
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Learn the Theory
These calculators implement methods from API RP 2A-WSD, ISO 19902, and DNVGL-ST-0126. Understand the engineering behind each calculation in the free offshore course.
Learn the Theory
These calculators implement methods from API RP 2A-WSD, ISO 19902, and DNVGL-ST-0126. Understand the engineering behind each calculation in the free offshore course.