A Smarter Mileage Tracker App for Business Travel
Instead of relying on GPS tracking, MileageCalendar uses the appointments already in your Google Calendar or Outlook to help create business mileage records. Your calendar knows where you went — we turn it into mileage.
Most mileage tracker apps create more work, not less
Many mileage tracker apps ask you to remember to start and stop a GPS tracker every time you drive. If you forget — and most people do — the journey is not recorded. If the app drains your battery, you turn it off. If it tracks your personal trips too, you have to sort through everything at the end of the day.
Other apps ask you to enter every journey by hand: the date, the start, the destination, the distance, the purpose. For someone who makes ten client visits a day, that is ten entries — every day.
Both approaches miss the point. If you already use a calendar for work, the information you need for mileage records is already there. You just need an app that reads it.
A mileage tracker app that uses your calendar
MileageCalendar is a mileage tracker app that works differently. Instead of relying on GPS tracking or manual entry for every journey, it can read the appointments already in your Google Calendar or Microsoft Outlook and turn them into mileage records.
Your calendar appointments have dates, locations and titles. MileageCalendar reads that information, calculates the driving distance from one appointment to the next, and creates draft mileage entries. You review and confirm them — the app handles the distance calculation, classification and reporting.
You can also add journeys manually with postcode calculation, plan multi-stop routes, and import Google Timeline data. Every method produces the same compliant record.
Calendar-based tracking
Reads appointments from Google Calendar or Outlook — no GPS tracker to remember to start and stop.
Manual journey entry
Add any journey by entering start and end postcodes. Driving distance calculated automatically.
Multi-stop route planning
Plan journeys with multiple stops and calculate total mileage for the entire route.
Google Timeline import
Upload your Google Timeline export to detect driving journeys and match them to appointments.
HMRC-compliant records
Every journey includes date, start, destination, miles and purpose — exactly what HMRC needs.
Accounting export
Sync mileage to Xero, QuickBooks, FreeAgent or Sage with one click.
How it works
Connect your calendar
Link Google Calendar or Outlook securely. Read access only — we never modify your events.
Review draft entries
MileageCalendar creates draft mileage entries from your appointments. You confirm which are business.
Export and claim
Download a compliant report or sync to Xero, QuickBooks, FreeAgent or Sage.
What a mileage tracker app does
A mileage tracker app records your business journeys and calculates the value of your mileage claim. It captures the date, the start point, the destination, the distance and the business purpose for every journey, then applies the correct mileage rate and produces a report you can use for your Self Assessment or expense claim.
The best mileage tracker apps reduce the admin of recording journeys. Instead of writing everything in a notebook or typing it into a spreadsheet, the app captures the information for you — either automatically or with minimal input.
Different ways mileage apps track journeys
Mileage tracker apps use different methods to capture journey information. Understanding the differences helps you choose the right one for how you work.
Calendar-based mileage tracking
Calendar-based tracking reads the appointments already in your calendar and turns them into mileage records. If you use Google Calendar or Outlook for work, every appointment with a location contains the information you need: the date, the destination and the business purpose.
MileageCalendar reads those appointments, calculates the driving distance between them, and creates draft mileage entries. This approach requires no GPS tracking and no manual entry for each journey — your calendar does the work.
The advantage is that you are not entering the same information twice. The limitation is that only appointments with locations are used — you may need to add ad-hoc journeys manually.
GPS mileage tracking
GPS-based mileage apps use your phone's location services to detect when you are driving and record the route automatically. You do not need to remember to log journeys — the app detects them for you.
The advantage is that no journey is missed. The limitations are battery drain, privacy concerns (the app tracks all driving, not just business), and the need to remember to classify journeys as business or personal afterwards.
MileageCalendar does not use continuous background GPS tracking. Instead, it can import Google Timeline data — which you export from your Google account — to detect driving journeys and match them to your appointments. This gives you the benefit of GPS detection without continuous battery drain or always-on tracking.
Manual mileage entry
Manual mileage apps ask you to enter each journey by hand: the date, the start, the destination and the distance. Some calculate the distance for you from postcodes; others ask you to look it up.
The advantage is simplicity and control — you only record what you want. The limitation is that it is time-consuming if you make many journeys, and it is easy to forget trips.
MileageCalendar supports manual entry with automatic distance calculation. Enter start and end postcodes and the app calculates the driving distance for you. This is ideal for one-off journeys or ad-hoc trips that are not in your calendar.
MileageCalendar's approach
MileageCalendar is designed for people whose work journeys already exist as appointments in Google Calendar or Microsoft Outlook. Instead of asking you to track journeys separately, it uses the information you have already entered in your calendar.
You connect your calendar securely using OAuth — read access only. MileageCalendar reads the location from each appointment, calculates the driving distance from one appointment to the next, and creates draft mileage entries. Your appointment title becomes the business purpose in the record.
For journeys that are not in your calendar, you can add them manually with postcode calculation, plan multi-stop routes, or import Google Timeline data. Every method produces the same compliant record format.
When you are ready to claim, MileageCalendar applies the current HMRC mileage rate, tracks the 10,000-mile threshold, and exports a compliant report or syncs to your accounting software.
Calendar-based tracking vs GPS tracking vs manual logging
Each method has its strengths. The right choice depends on how you work, how many journeys you make and whether you use a calendar.
- Calendar-based: best if you already use Google Calendar or Outlook for work appointments. No battery drain, no privacy concerns, no manual entry for each journey. Limitation: only works for appointments with locations.
- GPS tracking: best if you want every driving journey captured automatically, including trips you did not put in your calendar. Limitation: battery drain, privacy concerns, and the need to sort business from personal trips afterwards.
- Manual logging: best for one-off journeys, ad-hoc trips or historical records. Limitation: time-consuming if you make many journeys, and easy to forget trips.
- MileageCalendar combines all three: calendar-based tracking for regular appointments, manual entry for one-off trips, and Google Timeline import for GPS-detected journeys.
Frequently Asked Questions
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