MARINE TOOLSPractical tools for seafarers
MARINE TOOLS · EDUCATION

Practical maritime tools for students and educators.

Use real-world style calculations to support classroom exercises, independent practice and discussions about vessel operations.

Maritime VGSDeck officersEngine officersNautical studiesTechnical studies
MARITIME LEARNING WORKSPACEONLINE
ACCESSBrowser
COSTFree
Fuel & BunkeringROB · density · transfer
EngineeringTechnical calculations
WeatherForecast context
Vessel ProfileReusable vessel data
WHY MARINE TOOLS

Designed around practical maritime work.

Marine Tools brings frequently used calculations and technical helpers into one consistent interface. Students can focus on the inputs, assumptions and results instead of spending time switching between unrelated calculators.

Fuel & Bunkering◧
Opening ROB42.6 m³Consumption3.8 m³/day
Estimated endurance11.2 days

Fuel & Bunkering

Practice ROB, fuel consumption, density, bunkering, tank transfer and endurance calculations.

Engineering⌕
Pressure5.4 barFlow18.0 m³/h
Calculated resultReady

Engineering & Electrical

Technical and electrical calculations, chemical dosing, NOx-related helpers and other everyday engineering tasks.

Weather☁
12 ktWind
1.4 mWave height
9 °CAir temperature

Weather & Voyage Estimates

Use point forecasts and quick distance, sea-time and fuel estimates as practical planning context.

Vessel Profile⚓
Service speed10.0 kn
Draft4.2 m
Fuel / day3.8 m³

Vessel Profile

Save reusable vessel, machinery, tank and energy-carrier data so exercises can use a consistent vessel setup.

FOR EDUCATORS

Use it as a supplement — not a black box.

Marine Tools works best when students are asked to understand and validate the calculation, not simply copy the output.

01

Set a practical exercise

Give students realistic vessel data and ask them to calculate fuel use, endurance, tank quantities or electrical values.

02

Compare methods

Let students solve the task manually first, then use Marine Tools as a control or discussion point.

03

Discuss assumptions

Change speed, density, consumption or weather inputs and discuss how assumptions affect the result.

04

Send feedback

Students and instructors can suggest improvements and missing tools directly to the project.

BUILT FOR PRACTICAL USE

Simple inputs. Clear outputs.

No installationRuns directly in a modern browser.
Desktop + mobileUseful in the classroom, onboard and ashore.
Reusable vessel dataKeep common vessel values available across tools.
Feedback-drivenMarine users help shape what is built next.
SHARE WITH STUDENTS & COLLEAGUES

Try Marine Tools in your next exercise.

Marine Tools is free to use. If your class or maritime department tests it, feedback on what is useful — and what is missing — is welcome.

CONTACT Trygve M. Walterfang Founder, Marine Tools [email protected] marinetools.app
Planning and calculation aid only. Marine Tools does not replace approved vessel systems, procedures, manuals, training material or required professional judgement. Source data, units and assumptions should always be verified.