Intuitive, Easy to use
Marine Calculators
From Design to Operations in easy to use Spreadsheets
Our Calculators form an essential part to every Marine/Offshore professional’s Kit
Designed to Save your Time and Money
Based on credible references and literature
Downloaded by thousands of our trusted clients
High acceptability by MWS, Class and other approval authorities
Marine Transportation
Pad-eye Design Spreadsheet
Not sure if the existing lifting lug can take the loads? Or want to design a new lug for cargo sea-fastening? This spreadsheet provides a rigorous design for a pad-eye and is one of our bestsellers. A suite of other apps helps you design the structural accessories like stoppers, dog-plates, bollards stanchions and lashings
Towing Operations
Bollard Pull Calculators
Looking for the tug for your charter barge or ship? Use these tools to select the right sized tug and avoid losing money going for an over-sized tug based on thumb rules. Further use our towing bridle design spreadsheet to complete your tow equipment selection. Hundreds of our clients have trusted these for their critical towing operations.
Marine Operations
Mooring Design Spreadsheets
Unsure about the mooring design of your upcoming berthing operation. Evaluate your design using our mooring calculators. Further, use our calculators based on OCIMF standards to know the environmental loads on your tanker or gas carrier.
View the Mooring Design App for berthing (Port/Stbd on Quay)
Ship Corrosion
Cathodic Protection Design
Worried about how many anodes will be needed to provide complete protection from corrosion for your ship, boat or offshore structure? This spreadsheet, based on DNV RP-B-401 gives a precise number based on a user selected anode design.
Ship Design
Ship Stability Calculator
Want to run a quick check on the stability and trim of your vessel without having to go through an elaborate software? With pre-fed hydrostatics and tank particulars, our extremely handy tool Shipload calculates the stability and trim parameters in a flash.
Ship Efficiency
Ship EEDI Calculator
Are you spending thousands of dollars on evaluating the EEDI of your vessel in the design or sea trial stage? Use this comprehensive, reliable and easy-to-use application to calculate your vessel’s Energy Efficiency Design Index (EEDI).
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Mooring Forces Calculator (Stern on Quay, 4-Point Mooring)
$49.00 -
Mooring Forces Calculator (Port or Stbd on Quay)
$49.00 -
OCIMF Environment Forces Calculator – Tankers (Updated toMEG-4)
$49.00 -
OCIMF Environment Forces Calculator – Gas Carrier (updated to MEG4)
$39.00 -
Capstan Design (Required power for Berthing)
$39.00 -
Fender Design (Berthing Energy Calculator – Side Berthing)
$49.00 -
SPMT Loadout Ramp Design Spreadsheet
$49.00 -
Bollard Pull Calculations for Barge
$39.00 -
Bollard Pull Calculations for Ships
$56.00 -
Cargo Forces & Accelerations
$39.00 -
Pipe Stacking Height Calculator (Bare Steel Pipes)
$19.00 -
Pad-Eye Design Spreadsheet
$49.00 -
Stopper Design Spreadsheet
$39.00 -
Dog Plate Design Spreadsheet
$39.00 -
Bollard Strength Check Spreadsheet
$39.00 -
Smit Bracket Design Spreadsheet
$39.00 -
Towline (Static) Catenary Calculator
$39.00 -
Ship Squat Calculator
$39.00 -
Towing Bridle Design Spreadsheet
$39.00 -
Stanchion Design Spreadsheet
$39.00 -
Cathodic Protection Design Spreadsheet
$49.00 -
Freeboard Calculation Software (FBD)
$99.00 -
Midship Section Modulus Calculator
$49.00 -
Equipment Number Calculator (To select Anchoring or Mooring Equipment)
$39.00 -
Ship Resistance Calculator (Holtrop & Mennen)
$49.00 -
Wageningen B-series propeller designer
$39.00 -
DNVRPC201 Linear Buckling Analysis of Stiffened Plate Panels
$49.00 -
Column Base Plate Design App
$49.00 -
Pipe Stowage Plan Spreadsheet
$19.00 -
Simplified Fatigue Analysis with 2 Segment S-N Curves (ABS)
$49.00 -
Towing Bridle Force Calculator
$29.00 -
2-Hook Lift Factors & Lift Point Loads
$39.00 -
Lashing Design (4 Point Lashing, IMO CSS)
$49.00 -
Mooring Line Catenary App
$39.00 -
Stacking Height Calculator (Concrete Coated Pipes)
$29.00 -
Shear Key Design (Grouted Piles)
$29.00 -
Motion Response Calculator
$49.00 -
Longitudinal Strength Limit Calculator
$39.00 -
Ship EEDI Calculator
$69.00 -
Single Point Lift Design Spreadsheet
$39.00 -
DNV Ship Motion Calculator
$49.00 -
Two point (single hook) lift design (as per DNV)
$39.00 -
Four point (single hook) lift design (as per DNV)
$39.00 -
Two point (two hook) lift design (as per DNV)
$39.00 -
OCIMF Anchoring Environment Loads Calculator
$39.00 -
Two Point Two Hook Spreader Bar Lift App
$39.00 -
Keyless Propeller Fitting Calculations
$29.00 -
Global Wave Scatter Generator
$39.00 -
Propeller Blade Thickness Calculator
$29.00 -
Spreader Beam Design Spreadsheet
$39.00 -
DNV RP-F105 – Pipeline Free Span Analysis Tool
$49.00 -
Wind Load Calculator – Beta Version
$0.00 -
Planing vessel resistance calculator
$29.00