PWO SolutionPWO
38 calculators

Marine calculators for fleet operations

Professional maritime math built into Marine ERP — voyage economics, emissions, navigation, technical planning, and compliance — with searchable catalog, category filters, and archivable runs instead of scattered spreadsheets.

Book a demoFAQ← Marine ERP overview

38 IMO & industry-standard calculators

Same catalog in the live ERP — search by name, regulation, or category. Saved runs can be archived for audit and client packs.

CommercialCommercial

Voyage Cost & P&L

Voyage revenue, costs, and break-even freight.

Available in Marine ERP · save & archive runs

CommercialBIMCO

Time Charter Equivalent

Gross and net TCE per day.

Available in Marine ERP · save & archive runs

Commercial

Voyage Charter Freight

Required freight rate for target TCE.

Available in Marine ERP · save & archive runs

CommercialBIMCO CP

Laytime & Demurrage

Laytime counting and settlement.

Available in Marine ERP · save & archive runs

Finance

Port Fees & DA

Port disbursement estimate.

Available in Marine ERP · save & archive runs

Finance

FX Impact on P&L

Multi-currency voyage exposure.

Available in Marine ERP · save & archive runs

Finance

Insurance Premium

H&M, P&I, and war risks estimate.

Available in Marine ERP · save & archive runs

EmissionsMEPC.337(76)

CII Rating

Attained vs required CII.

Available in Marine ERP · save & archive runs

EmissionsMEPC.333(76)

EEXI

Energy Efficiency Existing Ship Index.

Available in Marine ERP · save & archive runs

EmissionsMEPC.212(63)

EEDI

Energy Efficiency Design Index.

Available in Marine ERP · save & archive runs

EmissionsMEPC.346(78)

SEEMP Carbon Budget

Fleet carbon budget and ETS exposure.

Available in Marine ERP · save & archive runs

OperationsISO 15016

Fuel Consumption

Sea and port fuel at speed.

Available in Marine ERP · save & archive runs

Operations

Bunker Planning & ROB

ROB forecast across voyage legs.

Available in Marine ERP · save & archive runs

Navigation

Route Optimization

Compare routes and speeds.

Available in Marine ERP · save & archive runs

Navigation

ETA & Distance

ETA from distance and speed.

Available in Marine ERP · save & archive runs

Navigation

Weather Routing Penalty

Weather delay and extra fuel cost.

Available in Marine ERP · save & archive runs

TechnicalISO 15016

Speed–Power Performance

Performance index vs baseline.

Available in Marine ERP · save & archive runs

TechnicalISO 19030

Hull Performance

Fouling loss and HPI.

Available in Marine ERP · save & archive runs

Technical

Maintenance Cost

Annualised maintenance spend.

Available in Marine ERP · save & archive runs

Technical

Drydock Cost

Drydock budget estimate.

Available in Marine ERP · save & archive runs

Finance

ROI on Maintenance

NPV and payback on investment.

Available in Marine ERP · save & archive runs

Technical

Inventory EOQ & Reorder

EOQ and reorder points.

Available in Marine ERP · save & archive runs

Commercial

DWT Utilisation

Cargo utilisation and draft.

Available in Marine ERP · save & archive runs

FinanceMLC 2006

Crew Wage & Allotment

Cost to company and net pay.

Available in Marine ERP · save & archive runs

ComplianceSOLAS V/14

Safe Manning

SOLAS manning compliance.

Available in Marine ERP · save & archive runs

ComplianceSOLAS II-1

Stability & GM

Metacentric height check.

Available in Marine ERP · save & archive runs

ComplianceIMO BWM

Ballast Water Compliance

BWM Convention compliance.

Available in Marine ERP · save & archive runs

ComplianceParis/Tokyo MOU

PSC Risk Score

Port State Control risk band.

Available in Marine ERP · save & archive runs

EmissionsEU 2023/1805

FuelEU Maritime

GHG intensity target, compliance balance, and penalty.

Available in Marine ERP · save & archive runs

EmissionsEU 2023/959

EU ETS Cost

EUA surrender cost with scope and phase-in.

Available in Marine ERP · save & archive runs

Operations

Economical Speed

Optimal speed by cost and daily profit.

Available in Marine ERP · save & archive runs

OperationsUN ECE

Draft Survey

Cargo quantity by displacement difference.

Available in Marine ERP · save & archive runs

Operations

Fresh Water Endurance

Daily balance, endurance, and voyage sufficiency.

Available in Marine ERP · save & archive runs

Operations

Lube Oil Consumption

Feed-rate consumption and endurance.

Available in Marine ERP · save & archive runs

NavigationIMO Res. A.893

Under Keel Clearance

Net UKC with tide, squat, and allowances.

Available in Marine ERP · save & archive runs

Navigation

Ship Squat

Barrass squat for open and confined water.

Available in Marine ERP · save & archive runs

Navigation

Great Circle Distance

GC and rhumb-line distance and course.

Available in Marine ERP · save & archive runs

Navigation

Anchor Scope

Cable scope in metres and shackles.

Available in Marine ERP · save & archive runs

Built for production use

Operators use these calculators daily for bids, passage planning, CII/FuelEU exposure, and drydock budgets. Shore and vessel teams get consistent outputs tied to your tenant data model.

One formula library

Commercial, technical, and compliance teams use the same approved math — no conflicting spreadsheet versions across offices and vessels.

Vessel & voyage context

Prefill from fleet registry, noon reports, and bunker ROB where modules are enabled — less re-keying for TCE, consumption, and emissions runs.

Save, archive & export

Store calculator inputs and outputs with timestamps for charter negotiations, drydock budgets, or PSC prep — archive older runs without losing audit history.

Regulation-tagged tools

Each tool references the governing framework where applicable (BIMCO, MEPC resolutions, ISO 15016/19030, SOLAS, FuelEU, EU ETS) so reviewers know which standard you applied.

Connected modules

  • Voyage log & noon report — fuel, distance, and speed inputs for consumption and ETA tools
  • Bunker management — ROB planning aligned with bunker ledger and fleet analytics
  • Enterprise finance — FX and voyage P&L calculators complement GL reporting maps
  • Drydock planning — drydock cost and hull performance tie to technical management
  • Payroll — crew wage & allotment calculator alongside multi-country payroll configuration
  • Compliance notifications — certificate and PSC context for manning and compliance tools

Related: Voyage log, Bunker, Finance, Maritime operations.

Typical workflows

  1. Charter desk — TCE, voyage freight, laytime/demurrage, and port DA before fixing.
  2. Fleet energy — CII, EEXI, FuelEU balance, EU ETS cost, and SEEMP budget from the same ROB and consumption assumptions.
  3. Master & chief engineer — ETA, UKC, squat, anchor scope, fresh water and lube endurance on passage.
  4. Technical superintendent — hull performance, drydock cost, maintenance ROI, and inventory EOQ for spares planning.

Decision support — not certified navigation or class approval

Calculators assist commercial and technical judgment. Stability, UKC, and emissions results must be validated against class, flag, and company SMS procedures before operational use.

Calculator access is included in Professional and Enterprise tiers (limited set on Starter). See pricing for plan comparison.

See this module with your workflows

Walk through with your vessel types, manning model, and compliance context.

Schedule a demo