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Traditional Chinese devices (Taiwan, Hong Kong) now open in Traditional Chinese. Minor stability improvements.
Mix gas and 2-stroke oil in the right ratio. Just enter fuel and pick a ratio.
2 Stroke Fuel Mix Calculator tells you exactly how much 2-cycle oil to add to your gasoline for the perfect mixture — every time you fill up. Chainsaws, string trimmers, leaf blowers, lawn mowers, outboard motors, dirt bikes and other 2-stroke engines need gas premixed with oil at a specific ratio. Too little oil and the engine can seize; too much and it fouls and smokes. This app removes the guesswork. [ HOW IT WORKS ] ● Enter Your Fuel Type the amount of gasoline you are mixing and choose the unit — liters, US gallons, or UK gallons. ● Pick a Ratio Tap a common preset — 16:1, 24:1, 25:1, 32:1, 40:1, or 50:1 — or enter your own custom ratio to match your equipment manual. ● Read the Oil Amount The exact oil quantity is shown instantly in both milliliters and fluid ounces, along with the total mixture volume. ● Copy & Go Copy the result with one tap so you can take it to the pump or the workbench. [ COMMON RATIOS ] - 50:1 — many modern chainsaws and trimmers - 40:1 — common for older two-stroke tools - 32:1 and 25:1 — vintage equipment and some outboards - Always follow the ratio in your equipment's manual [ GREAT FOR ] - Chainsaw and trimmer owners - Lawn care and landscaping work - Outboard boat motors and jet skis - Dirt bikes, mopeds and scooters - Anyone who mixes two-stroke fuel by hand [ ACCURACY NOTE ] Results are calculated from the fuel amount and ratio you enter. Always confirm the correct ratio in your engine manufacturer's manual before mixing. This app is a convenience tool and not a substitute for official guidance. Enter your fuel, pick your ratio, and mix with confidence.