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Marine Calculators

Marine category for maritime and shipping related services, including ship brokerage, vessel sales, chartering, offshore support, marine logistics, oil tankers, LPG vessels, cargo operations, and maritime consultancy solutions.

40 calculators

Sailing Distance Calculator
Calculate the total nautical distance and estimated sailing time of your yacht voyage acro
πŸ‘ 452
Set and Drift Calculator
Calculate the set (direction) and drift (speed) of ocean current by comparing a vessel's D
πŸ‘ 437
Dead Reckoning Calculator
Estimate a vessel's new position from a starting latitude/longitude, true course, speed an
πŸ‘ 382
Rhumb Line Distance Calculator
Calculate rhumb line (loxodrome) distance and true course between two latitude/longitude p
πŸ‘ 317
Tidal Range Calculator
Calculate tidal range and mean tide level from high water and low water heights, and estim
πŸ‘ 282
Compass Deviation Calculator
Convert between compass course and true course by applying magnetic variation and compass
πŸ‘ 204
Rolling Period Calculator
Calculate rolling period and metacentric height (GM) to assess vessel stability, with a qu
πŸ‘ 43
Seafarer Contract Calculator
Quickly find how many days are left in your seafarer contract, your completion date, and y
πŸ‘ 39
Maritime Intercept Course Calculator
Calculate the precise course and time required to intercept another vessel using vector an
πŸ‘ 36
Gyro and Compass Error Calculator
Calculate gyro error, compass error, true course, magnetic course, and compass course from
πŸ‘ 26
Fresh Water Allowance Calculator
Professional multi-tab calculator for FWA, DWA, Draft Change, New Draft, Cargo Loading, an
πŸ‘ 25
Sea Service Calculator
Calculate your total sea service accurately from multiple sign-on and sign-off dates for c
πŸ‘ 23
FWA and DWA Calculator
Calculate Fresh Water Allowance and Dock Water Allowance for any vessel, supporting TPC an
πŸ‘ 23
Draft Survey Calculator
Complete draft survey calculator supporting initial, intermediate, and final surveys with
πŸ‘ 21
ETA Calculator
Precise estimated time of arrival calculations for your destination port based on distance
πŸ‘ 21
Speed Converter
Convert between knots, km per hour, mph, and meters per second, with a vessel speed catego
πŸ‘ 21
Anchor Swinging Radius Calculator
Determine the safe anchoring swing radius using vessel length overall, chain length paid o
πŸ‘ 19
TPC and TPI Calculator
Calculate Tons Per Centimeter (TPC) and Tons Per Inch (TPI) immersion for vessels from wat
πŸ‘ 19
Marine Bunker Fuel Consumption Calculator
Calculate marine bunker fuel consumption accurately for a single voyage or across a whole
πŸ‘ 18
Seafarer Salary Calculator
Calculate your monthly gross wage and total contract earnings from basic wage, fixed overt
πŸ‘ 18
Anchor Scope and Chain Length Calculator
Find how much anchor chain to pay out when anchoring, based on water depth, bow height, an
πŸ‘ 16
Fuel & Bunker Calculator
Professional fuel and bunker calculator with four integrated tools: density correction to
πŸ‘ 16
Volume to Weight Converter
Convert cargo volume to weight and vice versa using cargo density or stowage factor, for c
πŸ‘ 16
Distance, Speed & Time Calculator
Calculate distance, speed, or time for any voyage leg, with an ETA mode, multi-leg passage
πŸ‘ 15
Distance Converter
Convert between nautical miles, kilometers, statute miles, fathoms, cables, meters, and fe
πŸ‘ 15
Arc to Time Converter
Convert arc measurements in degrees, minutes, and seconds to time in hours, minutes, and s
πŸ‘ 15
Mercator Sailing Course and Distance Calculator
Determine the true course and distance between two coordinates using Mercator sailing, acc
πŸ‘ 15
CPA and TCPA Calculator
Calculate Closest Point of Approach and Time to Closest Point of Approach from radar obser
πŸ‘ 15
Latitude Longitude Converter
Easily convert latitudes and longitudes between decimal degrees, degrees-minutes-seconds,
πŸ‘ 14
Maritime Currency Converter
Convert seafarer salaries across major currencies to compare contracts, calculate allotmen
πŸ‘ 14
True Wind Calculator
Convert a ship apparent wind reading into true wind speed and direction, useful for weathe
πŸ‘ 14
Wheel Over Point Calculator
Calculate the precise wheel over point for vessel course alterations, using turn radius or
πŸ‘ 14
Plane Sailing Calculator
Calculate the course and distance between two points by modeling the Earth as a flat plane
πŸ‘ 13
Time to Arc Converter
Convert time values in hours, minutes, and seconds into arc degrees, minutes, and seconds
πŸ‘ 13
Meridional Parts Calculator
Calculate meridional parts for any latitude, and reverse calculate latitude from a given m
πŸ‘ 13
Parallel Sailing Calculator
Calculate course and distance when sailing due East or West along a parallel of latitude,
πŸ‘ 13
Average Speed Calculator
Calculate the true weighted average speed across multiple voyage legs in knots, kilometers
πŸ‘ 13
Maritime Unit Converter
Real-time conversion across multiple maritime categories including speed, length, pressure
πŸ‘ 12
Mercator Sailing Arrival Position Calculator
Swiftly discover your arrival coordinates given your departure position, course, speed and
πŸ‘ 11
Great Circle Sailing Calculator
Calculate the shortest path distance and initial course between two points on the Earth su
πŸ‘ 11