Tools Changelog
We are constantly improving our mathematical models and adding new tools per users requests. Here is the history of Maritime Calculator.
Rolling Period Calculator
Launched a professional maritime stability tool to calculate vessel rolling period and Metacentric Height (GM). Includes assessment of stability thresholds and support for multiple calculation models.
Try the Tool →Distance Converter
Launched a dedicated maritime distance converter. Convert between nautical miles, km, miles, fathoms, cables, and feet with high precision.
Try the Tool →Speed Converter
Launched a dedicated maritime speed converter. Convert knots, km/h, mph, and m/s with vessel speed category classifications.
Try the Tool →Parallel Sailing Calculator
Launched a specialized calculator for parallel sailing (sailing due East or West). Features include course/distance calculations, final position finding, interactive mapping, and step-by-step breakdown.
Try the Tool →Average Speed Calculator
Launched the Average Speed Calculator for multi-leg voyages. Calculate true weighted average speed in knots, km/h, or mph. Supports Speed+Duration and Speed+Distance modes with per-leg breakdown.
Try the Tool →Maritime Currency Converter
Launched a specialized currency converter for seafarers with salary comparison (Contract A vs B), allotment calculator, and tax estimators. Works offline with 180-day rate caching.
Try the Tool →Maritime Unit Converter
Launched a multi-category maritime unit converter supporting real-time conversions for Speed, Length, Pressure, Power, Flow Rate, and more.
Try the Tool →Volume-to-Weight Converter
Launched a professional maritime calculator for cargo volume and weight conversions, supporting multiple units and cargo presets.
Try the Tool →Distance, Speed, & Time Calculator
Launched a versatile DST Calculator featuring real-time distance and speed unit conversions, ETA predictions, multi-leg passage planning, and fuel consumption estimation.
Try the Tool →Fuel & Bunker Calculator
Added comprehensive Fuel & Bunker Calculator with 4 integrated tools: Density temperature correction, bunker quantity calculator, ASTM table integration (54A, 54B, 56), and API gravity conversions.
Try the Tool →Seafarer Salary Calculator
Calculate your salary and compare it against industry standards.
Try the Tool →Marine Bunker Fuel Consumption Calculator
Added Marine Bunker Fuel Consumption Calculator.
Try the Tool →Draft Survey Calculator
Added Draft Survey Calculator with supporting initial, intermediate, and final surveys as requested by Chief Officer Charlie S.
Try the Tool →Meridional Parts Calculator
Added a Meridional Parts Calculator with on-demand features such as Single Lat → MP, Reverse MP → Lat, DMP Calculator, and Batch Processing.
Try the Tool →Sea Service Calculator
Added Sea Service Calculator that checks your total service record given the date inputs. You can download them in a nice pdf or image file.
Check Accuracy →Added Phone Number
Added phone number.
Platform Launch
MaritimeCalc is now live! Featuring high-performance tools such as Mercator Sailing, ETA Calculator, Contract Calculator, Arc to Time/ Time to Arc Converter, Swinging Radius, Lat/Long Converter, Plane Sailing Calculator, Great Circle Sailing and Compass Error Calculator.
Browse the site →