Dilution & Mix Ratio Calculator
Choose a ratio and final batch size to get exact amounts instantly, with optional gram targets calculated from density.
Find a preset
Search by ratio, container size, category or product.
Try “1:128 in 32 oz”, “4:1 epoxy” or “1000 ppm”.
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Calculator categories
Coolant & antifreeze mix calculatorsCalculate concentrate and water amounts for a selected final mixture.Herbicide & Roundup per gallon calculatorScale the rate from your exact product label for any final spray volume.Epoxy resin mix calculatorsCalculate resin and hardener volumes, with optional gram targets from density.Detailing dilution calculatorsAPC, wheel cleaner, glass cleaner and interior dilution presets.Paint mixing calculatorsCalculate paint, activator and reducer amounts for common multi-part ratios.Bleach dilution calculatorsConvert source strength and target ppm into exact solution and water amounts.Janitorial dilution calculatorsScale spray bottles, mop buckets and sanitizer batches.
Product & reference calculators
View allHow calculations work
Ratios divide the final batch volume by parts. Optional gram targets are derived from those volumes using the densities you provide. PPM mode scales a known source concentration to a requested target.