Know the Week the Oil Runs Out, Not the Morning It Does — Free
Enter the dip reading, how fast the tank drops each week and how long your supplier takes to deliver, and the tag prints the date to order — for the oil, the propane and the logs on one hanging tag. The free tier is the whole card: every field, every state, and the state link. Nothing is withheld behind the optional one-time tier.
1 · Set the dip tag
FIRST-LOAD · sample record filed
Data note: Everything is computed in this browser tab. Nothing you type is uploaded, and nothing is stored on our servers. Redact names and identifying details before you paste anything sensitive, and check the output against the named source before you act on it.
2 · Read the clipped tag
GratisAI turned my dip reading into days of cover and an order-by date — one row per fuel, on a tag that hangs on the tank.
Boundary: This does arithmetic on the readings and lead times you type in; it is not a tank measurement, it cannot verify a supplier's delivery times, and it does not account for unusable fuel at the bottom of a tank or for weather. Confirm quantities and lead times with your supplier in writing before you rely on a date.
Free core · $4 one-time
The on-screen result is free and repeatable forever. The one-time tier adds a tangible file you keep and the saved history that comes with it; it never removes or degrades the free result.
- Printable tag for the tank and the kitchen door — one hanging page per season with the dip readings and order dates — estimate: ~8 minutes saved per week spent guessing whether to order
- Saved season history — keep the previous three tags in this browser so next winter inherits a measured burn rate — estimate: ~30 minutes saved per season recalculating it
- Delivery-price column on the paid copy — record what each delivery cost per litre and print the trend — estimate: ~15 minutes saved per quote you would otherwise hunt for
ONE-TIME STEP · the printable copy and saved history are the optional step
Good to know, with care. The one-time option simply unlocks this app here on your device — no account needed, and nothing you type ever leaves this browser. Your free result above stays complete either way, always.
Unlock Pro — $4 one-time
- Printable tag for the tank and the kitchen door — one hanging page per season with the dip readings and order dates — estimate: ~8 minutes saved per week spent guessing whether to order
- Saved season history — keep the previous three tags in this browser so next winter inherits a measured burn rate — estimate: ~30 minutes saved per season recalculating it
- Delivery-price column on the paid copy — record what each delivery cost per litre and print the trend — estimate: ~15 minutes saved per quote you would otherwise hunt for
One-time price, yours to keep on this device — no account needed. After secure checkout you'll return here and your Pro features will be ready and waiting.