Turn your Android into a professional GPS speedometer app mileage tracker and head up display (HUD). Ever wondered "how fast am i going?" Speedometer One checks your real-time speed in MPH or KM/H runs a digital odometer tracks elevation and logs every trip with its fuel cost — all in the background.

Need a reliable car speedometer a simple spedometer app or an app to tell car speed? We provide precise speedometer gps real time tracking for daily driving.

🚗 GPS Speedometer — MPH KM/H & Knots
Our large display shows real-time average and top speed with GPS precision. Readable day or night. Choose miles per hour (MPH) for US driving KM/H for international routes or Knots on the water. Find out exactly "whats my speed mph" at any moment.

🪟 Head Up Display (HUD) Mode
Project your speed onto your windshield. The head up display mirrors your readout in reverse so it reflects perfectly off the glass — safe eyes-on-the-road driving with no extra hardware required.

📍 Mileage & Driving Tracker
Track my speed for car driving and save the route. Every trip is automatically recorded: distance duration average/top speed and elevation. The perfect mileage log for business miles IRS mileage records expense claims or personal tracking.

⛽ Fuel Cost & Mileage Reimbursement
Enter your car's fuel consumption and gas price once and every trip gets its own cost. Tag a drive with who pays to see what it is worth back at your own rate per mile or km. Totals by day week month or year exported to CSV Excel or PDF. Day and week are free.

📏 Car Digital Odometer & Distance Log
Tracks cumulative trip distance exactly like a car digital odometer. Ideal for logging delivery miles or keeping a personal driving log. Works for cars motorcycles e-bikes boats and any vehicle.

🏔️ Altitude & Elevation (MSL)
Most apps show raw GPS altitude off by 50+ meters. Our advanced Geoid Correction calculates true Mean Sea Level (MSL) elevation. Accurate altitude data for mountain roads hiking trail running and aviation.

⚠️ Speed Limit App & Alerts
Need a quick speed check gps? Set any custom speed limit and receive instant visual and audio warnings when you exceed it. A must-have speed limit app feature for city driving and highway safety.

📱 Picture-in-Picture (PiP)
Check my gps speed while using Google Maps or any navigation app. It floats as a small overlay so you can multitask without losing sight of your speed and altitude.

📊 Speed & Elevation Charts (PRO)
Unlock detailed speed and altitude graphs for every trip. See exactly where you hit your top speed how your elevation changed and analyze your driving patterns.

WHO IS THIS FOR?

🚘 Rideshare & Delivery Drivers
Uber Lyft DoorDash and courier drivers. Track every mile automatically for your IRS mileage log with the fuel cost and reimbursement of each trip. Runs in the background even when the screen is off.

🛣️ Road Trip & Highway Drivers
Full-screen car speedometer with speed limit alerts real-time altitude and a complete route history.

🏍️ Motorcycle & RV Drivers
HUD mode is readable in direct sunlight. No OBD adapter needed — GPS-based works with any vehicle.

🚴 Cyclists & E-Bike Riders
GPS speed tracker and digital odometer without a dedicated bike computer. Track top speed average pace and elevation gain.

🚢 Boating & Water Sports
Switch to Knots and track your boat speed on open water.

🔋 Battery-Efficient Background Tracking
Our GPS engine is optimized for minimal battery drain. Continues tracking your mileage and speed even when the screen is off.

🔒 Privacy First
Your location data stays on your device. We never sell your data. A professional GPS speedometer app that respects your privacy.

Download Speedometer One today — speedometer odometer MPH tracker head up display altitude monitor and mileage expense log. The spedometer app that tells you what driving costs.