燃費ノート

A retro-pop fuel economy notebook that automatically calculates fuel efficiency (km/L) using the full-tank method by simply entering the odometer reading, amount of fuel added, and amount paid when refueling.

■ What You Can Do

・See the fuel efficiency (km/L) from the previous refueling and your average fuel efficiency so far
・Check the fuel price per liter (yen/L) and how much it costs to drive 1 km (yen/km)
・Understand changes in fuel efficiency at a glance with a line graph
・Register multiple vehicles and switch between them with tabs
・Distance traveled is automatically calculated from the difference between current and previous odometer readings. You won't get thrown off by forgetting to reset your trip meter
・If you misenter the odometer reading, it will tell you on the spot "that's smaller than last time"
・You can correct records anytime by tapping

■ Features

・No installation required. Just open it in a browser, works on both smartphones and PCs
・No account registration, completely free
・All data stays only on your device. Nothing is sent to servers

■ Tips for Using

Recording when you fill up to full tank produces accurate fuel efficiency (full-tank method). The first record becomes the "baseline," so fuel efficiency is calculated starting from the second refueling.