Engineers Pocket Guide Ship's Calculator
CABERIS Marine Engineering Calculators
This calculator landing system is provided as a free CABERIS project initiative by Noel Cabe, Marine Engineering Specialist, Creator and System Architect of caberis.com. The system designer is a long-time Chief Engineer who understands the real difficulty faced by marine engineers and seafarers at sea when quick, reliable, and practical computing aids are not available onboard. CABERIS shares these tools as a professional knowledge-support initiative for practical engineering reference, operational understanding, and safer technical decision support.
Fuel Calculation | ISO Correction
Operational onboard estimation for Main Engine and Diesel Generator fuel performance, including LCV, SFOC, ISO-inspired correction, and SCOC where applicable.
Open CalculatorAmber-Core | Electrical Calculation
Electrical Logic Vault for voltage, current, resistance, power, motor behavior, torque, efficiency, and shipboard electrical reference support.
Open Amber CoreBunker Tables | ASTM Access
Access point for bunker quantity and calculation table references, including future CABERIS ASTM-related support tools and density conversion workflows.
Open TablesSewage | Maximum Rate of Discharge
Professional reference calculator for MARPOL Annex IV-related maximum discharge rate estimation using DRmax reference logic.
Open CalculatorSystem Purpose
Fuel Calculation and ISO Correction
The CABERIS Operational Onboard Estimation System is designed for practical marine engineering fuel performance monitoring and operational efficiency analysis for Main Engines and Diesel Generator Engines.
The system provides quick-access onboard estimation inspired by generalized ISO 3046-1 and ISO 15550 reference concepts for monitoring Lower Calorific Value, Specific Fuel Oil Consumption, ISO corrected SFOC, and Specific Cylinder Oil Consumption where applicable.
The Main Engine panel includes LCV, actual SFOC, ISO corrected SFOC, SCOC, fuel density conversion, optional torque calculation, RPM reference, and editable correction factors for onboard operational monitoring. The Diesel Generator panel includes LCV, generator load based SFOC, ISO corrected SFOC, optional generator efficiency, fuel density conversion, and operational fuel performance monitoring.
Amber Core Electrical Calculator
Modern vessels rely on electrical systems every minute at sea. From propulsion and automation to cargo operations, navigation support, safety systems, and engine room continuity, electrical behavior has become deeply connected to daily ship operations.
AMBER CORE was developed to make essential shipboard electrical calculations easier to understand, verify, and apply. The Electrical Logic Vault presents voltage, current, resistance, motor power, torque, efficiency, and power flow through clearer operational references.
The objective is not to replace technical expertise or professional judgment. The objective is to support understanding, reduce confusion, strengthen communication, and help marine personnel approach electrical systems with greater confidence.
Bunker Tables and ASTM Reference Access
CABERIS bunker table access and calculation-table references are provided for operational engineering support only. Any ASTM-related table reference, density conversion workflow, fuel quantity estimate, or bunker calculation support must be verified against official documentation, applicable standards, bunker delivery notes, laboratory reports, vessel procedures, and company requirements.
CABERIS does not claim ownership of ASTM standards or official industry tables. Any reference is provided only as practical engineering context and must not be treated as a replacement for official standards, calibrated instruments, laboratory certificates, or approved commercial documentation.
Sewage Discharge Calculator
This CABERIS calculator is provided as a professional reference and engineering support tool only. It does not constitute operational authorization, statutory approval, flag-state approval, class society approval, or regulatory certification.
The calculator applies the formula DRmax = 0.00926 V D B. The vessel condition represented by this calculation assumes the vessel is en route, more than 12 nautical miles from nearest land where applicable, and proceeding at a speed of not less than 4 knots. D5 Maximum Summer Draft controls the upper draft boundary and the theoretical maximum discharge rate.
It does not replace vessel-approved documentation, MARPOL-related instructions, International Sewage Pollution Prevention Certificate, Administration requirements, class requirements, company SMS, onboard sewage discharge procedures, approved sewage management arrangements, or official vessel technical manuals.
Operational Engineering Protection Framework Active
© 2026 CABERIS.COM — Noel Cabe — All Rights Reserved.
The CABERIS Engineers Pocket Guide and Ship's Calculator landing system provides independent operational engineering estimation methodologies, calculation access points, educational reference structures, and onboard support tools for marine engineers and seafarers.
Fuel calculation and ISO correction references are inspired by generalized ISO 3046-1 and ISO 15550 reference concepts only. This framework does not constitute certified OEM testing, official ISO certification, classification approval, laboratory validation, guaranteed performance verification, or legally binding technical certification.
All users remain responsible for independent verification, engineering judgment, and compliance with applicable classification society, manufacturer, flag-state, Administration, company SMS, vessel procedures, and regulatory requirements.
Any reference to ISO standards, ASTM-related methods, MARPOL-related calculation logic, marine engines, fuel performance methodology, operational correction principles, electrical calculations, or discharge references is provided exclusively for informational engineering context. Standards remain the intellectual property of their respective owners and organizations.
The calculators, interface, layout, visual structure, documentation arrangement, formula presentation, CABERIS branding, and deployment format are protected as CABERIS.COM intellectual property and professional documentation assets. Unauthorized copying, resale, redistribution, rebranding, removal of CABERIS marks, misrepresentation, reverse engineering, commercial reuse, or deployment outside authorized CABERIS.COM context is not permitted.
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