Practical digital tools for everyday life
Business software for growing organizations
Free, fast, and easy to use
Calculate accurate real-world MPG and L/100km between fill-ups, audit fuel spending per kilometer, and compare against factory EPA ratings.
Eliminates inaccurate onboard trip computer estimates with pure mathematical pump volume math.
Track running costs over thousands of kilometers to budget for road trips and business tax deductions.
No account creation or subscription required, trip logs store locally and export to printable PDF records.
The tool computes exact tank-to-tank fuel economy by tracking the delta distance between odometer fill-ups and the exact volume of fuel added at the pump, displaying real-world MPG, L/100km, km/L, and variance against official EPA window stickers.
EPA tests occur under controlled laboratory temperatures without air conditioning drag, wind resistance, roof racks, cold starts, or aggressive urban stop-and-go traffic.
Yes! Click 'Efficiency PDF Log' to export a clean, vector-rendered logbook showing trip history, total fuel expenditures, and running costs per kilometer or mile.
Yes! You can toggle seamlessly between US MPG, European L/100km, and Asian km/L metrics with custom currency formatting for USD, EUR, GBP, INR, JPY, CAD, AUD, and BRL.