MixByParts

30% coolant / 70% water in 1 gallon

Precise mix and dilution math, with optional density-derived gram targets and copy-to-label tools.

Exact amounts (pre-calculated)

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  • Coolant38.4 fl oz by volume
  • Water89.6 fl oz by volume

Add 38.4 fl oz Coolant and 89.6 fl oz Water to make 1 US gal.

How to mix 30% coolant / 70% water in 1 gallon

This calculator preloads a 30% coolant / 70% water dilution for a total batch of 1 gallon. Confirm the total volume, then follow the component amounts surfaced above. Optional gram targets are derived from these volumes after you enter the exact product densities.

  1. Confirm 30:70 coolant:water by volume and the exact product instructions.
  2. Measure the displayed amounts: 0.3 US gal Coolant, 0.7 US gal Water.
  3. Combine only the named components in the order required by the product instructions. Do not add unlisted liquid.

Accuracy tips

Need to batch multiple containers? Duplicate this preset, change the container size, and use the copyable mix line for fast relabelling. Only use gram targets after entering densities from the exact product data.

Other containers for 30% coolant / 70% water
5 liters16 oz24 oz32 oz250 mL500 mL750 mL1 liter15 liters
Other ratios for 1 gallon
40% coolant / 60% water60% coolant / 40% water50/50 coolant mix70% coolant / 30% water

How this is calculated

For a ratio of a:b, each part is a/(a+b) and b/(a+b) of the total. PPM mode uses 1 ppm ≈ 1 mg/L for aqueous solutions. Show gram targets to convert those calculated volumes using the densities you provide; the ratio itself remains volume-based.