Spot Spray Tank Mix Calculator

Spot Spray converts label percent and acre rates into exact tank amounts in seconds, no guesswork.

Built for farm, garden, and do it yourself home pest control. When the mix has to match the label, the math has to be right.

FEATURES

• Step-by-step guided workflow
• Spray Recipes — save, view, and manage mixes
• Share & print — export as PDF
• iCloud sync — recipes across iPhone, iPad, and Mac
• Works offline — no internet required
• High-contrast dark interface
• Imperial & metric — switch anytime

CALCULATES

• Acre & hectare rates
• % solution — concentration mixes
• Any tank size — 1, 2.5, 100 and up gal/L
• Single-product or multi-ingredient tank mixes

UNITS

Imperial: oz, pt, qt, gal, lb
Metric: mL, L, g, kg

HOW IT WORKS

1. Select Imperial or Metric and your label's unit
2. Choose % Rate or Acre/Hectare Rate
3. Enter the label rate and tank size
4. Tap = for the exact amount to add

Save as a recipe, add more products to the same tank mix, or share and print from Spray Recipes.

WORKS WITH

Herbicides, pesticides, fungicides, fertilizers, adjuvants, surfactants — for farm, pasture, fence lines, food plots, lawn, garden, and home pest control.

PRICING

5 free calculations + 5 free recipe saves.
Unlock unlimited use — one-time $4.99, no subscription, no ads.

IMPORTANT

Spot Spray is a calculation tool only. It does not recommend rates, validate labels, or replace professional advice. Always follow the manufacturer's label. You assume all risks.