Examples
Examples
Try the starting example
- Current odometer distance (km)
- 1200
- Today
- 2026-10-20
- Tasks: name, last-service odometer km, distance interval km, last-service date, day interval
- Chain,500,1000,2026-09-20,90 Brakes,1000,500,2026-10-01,30
- Distance remaining by task (km)
- Chain: 300; Brakes: 300
- Next calendar due date by task
- Chain: 2026-12-19; Brakes: 2026-10-31
- Earliest next calendar due date
- 2026-10-31
- Tasks already at an entered distance or date limit
- None
Try another scenario
- Current odometer distance (km)
- 1600
- Today
- 2026-11-02
- Tasks: name, last-service odometer km, distance interval km, last-service date, day interval
- Chain,500,1000,2026-09-20,90 Brakes,1000,500,2026-10-01,30
- Distance remaining by task (km)
- Chain: -100; Brakes: -100
- Next calendar due date by task
- Chain: 2026-12-19; Brakes: 2026-10-31
- Earliest next calendar due date
- 2026-10-31
- Tasks already at an entered distance or date limit
- Chain: distance; Brakes: distance and date
Calculation method
Calculation method
Distance remaining by task (km)
Last-service odometer+distance interval−current odometer; negative values remain visible.
Next calendar due date by task
Last-service date+entered whole-day interval.
Earliest next calendar due date
Minimum of task due dates; this is not a prediction of distance-based service time.
Tasks already at an entered distance or date limit
Report a distance/date trigger when remaining distance ≤0 or today is at/after the due date.
Symbols and units
- a
- Current odometer distance (km)
- b
- Today
- c
- Tasks: name, last-service odometer km, distance interval km, last-service date, day interval
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- A reminder ledger under manufacturer or mechanic intervals you enter. It does not decide service intervals or infer component condition from distance.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
OpenStax: arithmetic model background ↗
Background reading; this does not imply endorsement or independent review of SumFizz.