iPhone Giveaway of the Day - Gas/Oil: Fuel Mix Calculator

You take pride in keeping your equipment ready for the next job. Thank you for using Gas / Oil. Calculate a two-stroke fuel mix, check an engine reference and keep track of the cans on your shelf, with useful tools for iPhone, iPad and Apple Watch.

MIX FUEL WITH CLEAR UNITS

- Calculate oil from the fuel quantity and ratio you choose.
- Use US gallons, Imperial gallons, liters and milliliters.
- Check a ratio from fuel and oil consumption or tank readings.
- Convert between oil percentage and fuel-to-oil ratio.
- Work backward from available mixing oil to fuel quantity.
- Calculate additive doses from the product instructions you enter.
- Review estimated finished volume, including oil and recorded additives.

FIND YOUR ENGINE AND CHAIN

- Browse 27 small two-stroke engine profiles, including 10 scooter profiles.
- Find models from STIHL, Husqvarna, ECHO, Yamaha, Honda and more.
- Check Piaggio, Vespa, Genuine, Peugeot and KYMCO scooter references.
- Distinguish premix engines from models with a separate oil tank.
- Read model, year and oil requirements with manufacturer source links.
- Search by brand, model or engine code; filter and group the results.
- Explore 45 chainsaw chain profiles with model-specific filing guidance.
- Measure pitch across three consecutive rivet centers.
- Compare drive-link thickness and convert inch fractions to millimeters.
- Find chain references by code, pitch, manufacturer or file size.

KEEP YOUR MACHINES AND CANS ORGANIZED

- Save equipment names, photos, notes and preferred units.
- Save the ratio you confirm from each machine's instructions.
- Start a mix calculation from a saved machine.
- Name containers and enter their permitted fill limits.
- Log mixing dates, ratios, oil, additives and intended equipment.
- See days since mixing and choose your own fuel review date.
- Enable an optional device alert for that date.
- Mark fuel used up or a can emptied, and keep its history.
- Start a fresh draft with Mix again.
- Preview, save, share or print fuel labels as PDF or PNG.

FIND AND UPDATE SAVED RECORDS

- Keep calculations with their inputs, results, names and notes.
- Save drafts now and finish their details later.
- Edit saved records and see related views update.
- Search and filter records or history by type, status and date.
- Follow a machine or container into its batch history.
- Browse more records as they load automatically.
- Export entity spreadsheets as CSV and transfer saved data as JSON.
- See overall totals and counts for each saved record type.

TOOLS THAT FIT YOUR ROUTINE

- Convert 41 units across six categories in one view.
- Calculate MPG, L/100 km, fuel consumption, range and area.
- Open Help beside forms for instructions, units and formulas.
- Reset calculations without deleting saved history.
- Reload the latest saved values with Reset in record editors.
- See one save confirmation at a time, including over open forms.
- Choose Light, Dark or Follow System and your result precision.
- Use iPad sidebars, favorites and a keyboard Done button.
- Keep check-ins and milestones inside the app.

TAKE THE CALCULATORS TO APPLE WATCH

- Use all 16 tools without a nearby iPhone or a Pro purchase.
- Save locally, share a result or reset the current calculation.
- Find Help & formulas at the bottom of Watch home.

Start with 50 free calculations on iPhone and iPad. Choose monthly or lifetime Pro for unlimited calculations, record management and fuel workflows. Watch calculator use is unlimited. Watch records stay on the Watch.

Follow your equipment and product instructions. Review dates do not establish fuel safety or expiry. Chain pitch alone does not select a file. Transfers include up to 10,000 saved items, with a separate 100 MB JSON file limit.

For monthly subscriptions:
Monthly Pro is a 1-month auto-renewable subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/