Home Neem Oil Mixing Calculator

Neem Oil Mixing Calculator: Ratio, Gallons & Spray Bottles

Scale a neem oil mixing ratio to any batch size without assuming every neem product uses the same rate. Use the verified 70% concentrate example or enter the exact rate from your own label.

Need general ratio math? Dilution Calculator · Need a small bottle? Spray Bottle Calculator.

Calculator

Neem Oil Mixing Calculator

Choose the Natural Guard 70% concentrate example below or enter the rate printed on your own neem product label. Different neem formulations — and even different labels for 70% concentrates — are not interchangeable.

Neem oil mixing ratio: why the product label matters

There is no single universal neem-oil-to-water ratio. Concentration, formulation and labeled use vary by product. For a concrete example, the Natural Guard Neem Oil Concentrate 70% product linked below lists 2 tablespoons per 1 gallon of water, equal to 1 fl oz per gallon. The newer ferti·lome Green 70% label uses a broader 2–4 tablespoons per gallon range for its insecticide/miticide directions, so do not transfer the Natural Guard preset to a different bottle just because the active-ingredient percentage matches.

The preset above is only for the Natural Guard 70% product example. If your bottle gives another rate, switch to Custom product-label rate and scale the number printed on your own label.

Neem oil spray recipe calculator for 16 oz, 32 oz and larger sprayers

Once you enter a label rate, the same math scales to a quart bottle, one-gallon pump sprayer or multi-gallon backpack sprayer. The result shows tablespoons, teaspoons, fluid ounces and milliliters so you can use the measuring tool you actually have.

View 70% neem oil concentrate↗ · chemical measuring cup↗

Technical sources

Related calculators

FAQ

How much neem oil do I use per gallon?

It depends on the exact product. The Natural Guard Neem Oil Concentrate 70% example on this page uses 2 tablespoons per gallon of water, which equals 1 fluid ounce per gallon. A newer ferti·lome Green 70% label uses 2–4 tablespoons per gallon for its insecticide/miticide directions, so use the rate on your own bottle rather than assuming all 70% concentrates are identical.

What is the neem oil to water ratio?

Neem products are not standardized to one universal concentrate-to-water ratio. Use the rate on the specific product label. The calculator can scale a custom tablespoon, teaspoon, fluid-ounce or milliliter rate per gallon.

Can I use the same rate for cold-pressed neem oil?

Not automatically. Cold-pressed neem products and clarified hydrophobic neem-oil concentrates can have different formulations and directions. Do not transfer the 70% concentrate preset to a different product unless its label gives the same rate.

How much neem oil goes in a 32 oz spray bottle?

Using the Natural Guard example rate of 2 tablespoons per gallon, a 32 oz batch is one quarter of a gallon and scales to 0.5 tablespoon, or 1.5 teaspoons. If your product label uses another rate, enter that rate in the custom mode.

Important note

This calculator performs rate and unit math. The current product label controls legal use sites, target pests or weeds, application method, PPE, timing, restrictions and state-specific requirements.