The spray mix calculator built for techs in the field. Enter your label rate, pick your tank — get exact ounces instantly. Works for pesticides, herbicides, fertilizer, and any concentrate you mix with water.
Results update as you type. No "calculate" button, no waiting. Open, input, answer, close.
Calculations work with zero signal — crawlspaces, attics, basements. Core math never needs the internet.
No sign-up, no login, no email required. Install and start calculating immediately.
Dark mode for low-light job sites. Light mode when you need it. Large touch targets for gloved hands.
Name and save any calculation. Tap to reload it next time you're at the same site with the same product.
Generate a clean image card of your mix and send it to your crew via text or group chat.
For crack & crevice, spot treatments, and any label that specifies ounces per gallon of water.
For broadcast, perimeter, and lawn applications. Calculates product amount and total solution needed.
For termite work and anything requiring a specific concentration. Built-in active ingredient adjustment.
Three inputs. One answer. Under 30 seconds.
Tap the rate format from your product label — oz/gal, oz/1,000 sq ft, or % solution.
Type the rate from your label. Tap a preset tank size or enter a custom volume. That's it.
The app instantly shows: "Mix X oz of product in Y gal water." Save it, share it, or move on to the job.
Spray Mix & Tank Calculator is designed to work right out of the box. Here are answers to common questions.
Yes — all calculations run fully on-device and require no internet connection. The app does fetch ads when online (via Google AdMob), but every calculator feature works the same in airplane mode, in basements, in crawlspaces, anywhere.
No. There is no account creation, no login, no email required. Install the app and start calculating immediately.
No. The app is a calculator only. It computes product amounts based on the rate you enter from your product label. It never suggests, recommends, or validates application rates. Always follow your product label.
When a label specifies a concentration as "percent active ingredient" (common for termiticides), you need to account for the fact that your product concentrate isn't 100% active ingredient. Enter the AI% from your product label (e.g., 9.1% for Termidor SC) and the app adjusts the math automatically. Leave it at 100% for standard dilution calculations.
Currently, saved calculations are stored locally on your device and do not sync across devices. If you use the share feature to export a calculation as an image, you'll have a record of it regardless of which device you're on.
Email support@productparty.us and we'll get back to you within 24 hours.
Last updated: September 2026
Spray Mix & Tank Calculator does not collect personal data itself. The app shows ads via Google AdMob, which may collect device identifiers and usage data to serve those ads. No account or email is ever required.
The app itself does not collect, transmit, or store personal information about you. Specifically, Spray Mix & Tank Calculator:
The app counts anonymous usage stats through TelemetryDeck so we can see which screens get used and what to improve. These signals carry no account, no calculation inputs, no product names, no IP address, and no cookies. You can switch them off any time under Settings, and the app works exactly the same either way.
The app does display advertisements via Google AdMob. AdMob may collect information such as your device's advertising identifier, IP address, app interaction data, and general location (country/region) to deliver and measure ads. See Google's advertising privacy policy at policies.google.com/technologies/ads for details.
The app stores the following data locally on your device only:
This data never leaves your device. It is not synced to any server, cloud service, or third party. Deleting the app removes all locally stored data.
The app uses Google AdMob to display ads and TelemetryDeck for anonymous usage counts. Information collected by AdMob is governed by Google's privacy policy. TelemetryDeck is privacy-first analytics based in the EU that never sees who you are. We do not share data with any other advertising networks, analytics services, or data brokers.
The app is not directed to children under the age of 13 and does not knowingly collect personal information from children. Ads served via AdMob are configured to comply with applicable children's privacy regulations.
If this privacy policy changes, we will update this page with the new effective date.
Questions about this policy? Email support@productparty.us.