Speed Distance Time
Calculate speed, distance, or ETA for passage planning.
SpeedDistanceETA
EffeDoppiaVu
4
Navigation tools live
5
Coordinate formats
4
Projects shipped
Catalogue
Tools
Calculators and mapping utilities for navigation and passage planning — built for practical use on deck, in the field, or at the desk.
Flagship tool
Lat/Long Coordinate Converter
Convert between DD, DDM, DMS, BNG, and MGRS formats. Search by address or coordinate on an interactive map.
DD/DDM/DMSBNG/MGRSGPS
Interactive map
Pick coordinates visually with the crosshair map, or plan full routes with waypoints and GPX export.
Open mapRoute builder
Multi-format waypoints, leg bearings, cruising speed ETAs, and professional passage planning.
Plan a routeNavigation & Mapping
Coordinate converters, course calculators, and interactive mapping tools.
Vertical Clearance
Safe passage under bridges: tide height, air draft, and safety margins.
ClearanceTideSafety
Course to Steer
Compass course corrected for current, wind, and deviation.
CourseCurrentWind
Work
Projects
Real-world builds, vehicle conversions, and web projects — from mechanical work to full-stack sites shipped for clients and side builds.
Honda CRF450R Street-Legal
Converting a high-performance motocross machine for road use — carburetion tuning, lighting, and compliance.
MechanicalKeihin FCRStreet Legal
Aprilia Tuono Mille Gen 1
2005 naked superbike — RSV1000 V-twin power, trellis frame, and Gen 1 roadster character.
MechanicalApriliaV-twin
Villa Marang Website
A modern, responsive website for Villa Marang showcasing accommodations and amenities.
Web DesignResponsiveNext.js
Chadon Beni Website
Online ordering platform for a Trinidad-inspired roti shop in Grenada — real-time order tracking, live menu, and kitchen confirmation.
Web DesignResponsiveNext.js