MixRatio: Dilution Mixer

Solve any mixing ratio: two-stroke fuel, cleaners, nutrients, coolant. Get the exact oil or concentrate to add in mL, oz, litres, or gallons. Save your mixes.

Any mixing ratio, solved.

MixRatio does the arithmetic and the unit conversion you would otherwise do by hand, so the pour is right the first time. Enter a tank size and a ratio and it returns the exact amount of oil or concentrate to add, in the unit you actually measure with.

FOUR CALCULATORS

• Fuel mix: two-stroke oil for any tank at 50:1, 40:1, 32:1, 25:1, or a custom ratio. See the oil for common tank sizes at a glance.
• Ratio: solve any two-part ratio from the total you want to make, the base you have, or the additive you have.
• Dilute: mix a concentrate to a target volume of solution, with the water and concentrate split out.
• Strength: enter a strength as a ratio, a percentage, or parts per million, and see all three at once.

BUILT FOR REAL WORK

• Metric and imperial: millilitres, fluid ounces, litres, and US gallons, switched anywhere.
• Save your common mixes: every saw, trimmer, cleaner, and feed you run, one tap away.
• Compare chart: see how strong each saved mix is, side by side.
• Recipe card: share any saved mix as a PDF with a mixing table for common batch sizes, or export your whole library as a CSV.

PRIVATE BY DESIGN Everything stays on your iPhone. No account, no cloud, no tracking. A Delete all saved mixes control lives in Settings.

FREE AND PRO The fuel and ratio calculators are free to use, with metric and imperial units. A single one-time purchase unlocks the dilution and PPM calculators, saving mixes, the compare chart, and the PDF and CSV exports. One payment, no subscription, yours to keep.

Measurements are informational. Always follow the label on your fuel, oil, or cleaning product for handling and safe use.