Everyday

Speed Distance Time Calculator

Calculate speed, distance, or time from any two known values. Supports km/h, mph, and m/s.

Unit Converter

Length Converter

Convert between all length and distance units — meters, feet, inches, miles, kilometers an

Everyday

Pace Calculator

Calculate running pace, finish time, or distance for any race from 5K to marathon.

Physics

Velocity Calculator

Enter the distance traveled and time taken to calculate the velocity of an object. Instant

Everyday

Fuel Cost Calculator

Calculate your fuel cost for a trip based on distance, fuel efficiency, and fuel price.

Physics

Torque Calculator

Calculate torque from force and lever arm length, or find force or distance given any two

Math

Slope Calculator

Calculate the slope, y-intercept, distance and equation of a line between two points (x1,

Marine

Rhumb Line Distance Calculator

Calculate rhumb line (loxodrome) distance and true course between two latitude/longitude p

Physics

Free Fall Calculator

Calculate the velocity, distance fallen and time for an object in free fall under gravity,

Marine

Sailing Distance Calculator

Calculate the total nautical distance and estimated sailing time of your yacht voyage acro

Everyday

Coordinate Distance Calculator

Calculate the distance between two points on a 2D or 3D coordinate plane using the distanc

Math

Map Scale Calculator

Convert between map distances and real-world distances using any map scale ratio.

Marine

Distance Converter

Convert between nautical miles, kilometers, statute miles, fathoms, cables, meters, and fe

Marine

Plane Sailing Calculator

Calculate the course and distance between two points by modeling the Earth as a flat plane

Marine

ETA Calculator

Precise estimated time of arrival calculations for your destination port based on distance

Marine

Distance, Speed & Time Calculator

Calculate distance, speed, or time for any voyage leg, with an ETA mode, multi-leg passage

Marine

Marine Bunker Fuel Consumption Calculator

Calculate marine bunker fuel consumption accurately for a single voyage or across a whole

Marine

Anchor Swinging Radius Calculator

Determine the safe anchoring swing radius using vessel length overall, chain length paid o

Marine

Parallel Sailing Calculator

Calculate course and distance when sailing due East or West along a parallel of latitude,

Marine

Great Circle Sailing Calculator

Calculate the shortest path distance and initial course between two points on the Earth su

Marine

Mercator Sailing Course and Distance Calculator

Determine the true course and distance between two coordinates using Mercator sailing, acc

Marine

Mercator Sailing Arrival Position Calculator

Swiftly discover your arrival coordinates given your departure position, course, speed and