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Fuel Mix Calculators by Equipment
Most modern handheld equipment runs 50:1, while dirt bikes and older outboards often need a richer mix. Choose your machine for a calculator preset to its usual ratio.
Chainsaw Fuel Mix Calculator
Usual ratio: 50:1
Stihl Fuel Mix Calculator
Usual ratio: 50:1
Husqvarna Fuel Mix Calculator
Usual ratio: 50:1
Weed Eater / Trimmer Fuel Mix Calculator
Usual ratio: 50:1 (some older models 40:1)
Leaf Blower Fuel Mix Calculator
Usual ratio: 50:1
Dirt Bike Fuel Mix Calculator
Usual ratio: 32:1 to 40:1
Outboard Motor Fuel Mix Calculator
Usual ratio: 50:1 (older models 25:1 to 40:1)
Always check the manual
Ratios vary by model year and oil type. Use the ratio printed in your owner's manual or on the fuel cap, then work out the amounts with the 2-stroke mix calculator or the mixing chart.