Said It Here

How to convert liquid herbicide measurements for a 1 gallon sprayer

Converting label instructions into tiny fractions like a third of a teaspoon for a single gallon of water is confusing and easy to get wrong. This makes it hard to mix small batches accurately, leading to mistakes like using too much and accidentally killing the grass.

Overview
People affected3 accounts across 1 forum
Workarounds found4 items attempted
Community agreement12 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Using a syringe or disposable pipettes to measure small volumes
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  2. 2
    Using a digital scale that measures in 0.1g increments
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  3. 3
    Using AI to handle unit conversions
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  4. 4
    Using the built-in measurement port on the product bottle
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Tried another approach not listed above?+ Share your workaround ↑

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/lawncare3 people · September 2026

“I'm totally confused when I read the directions for how much I should put into a 1 gallon sprayer with 1 gal of water? Sounds like a 1/3 tsp and I'm not sure if that's right or even how to measure that properly!”source ↗

six2midnite · r/lawncare · 10 upvotes

“I need an ounce but only have teasspoon/tablespoon etc.”source ↗

varano14 · r/lawncare · 1 upvotes

“I over did it and made my grass white lol”source ↗

INTOTHEWRX · r/lawncare · 1 upvotes

Where this came up

People with this problem also raised