Spray Mix Calculators Mixing Ratio Chart
Spray Mixing Ratio Chart: Oz Per Gallon Reference Tables
Printable reference tables for common dilution ratios. See oz per gallon and mL per liter for 1:16, 1:32, 1:64, and more — plus tank-size tables for backpack sprayers and gallon tanks.
📄 Print-friendly chart below — bookmark this page or print for quick spray mixing reference. No sign-up required.
Need exact numbers? Use the Spray Mix Calculator · Prefer oz/gal inputs? Oz Per Gallon Calculator · Calibrating equipment? Nozzle Flow Rate · Pressure reference: PSI vs GPM. Need the right measuring gear? See recommended spray mixing tools to reduce dilution errors.
Jump to: Ratio chart · Tank quick tables · FAQ
Need a custom ratio or exact decimals? Use Ounces Per Gallon Calculator or Spray Mix Calculator.
Most common oz per gallon ratios (quick answers)
These are the oz per gallon measurements users search for most often:
2 oz per gallon ratio = 1:64
2 ounces per gallon equals a 1:64 ratio (concentrate:water). Common for:
- Lawn fertilizer applications
- Light herbicide treatments
- Mild cleaning solutions
- Foliar spray at recommended rates
For 1 gallon: 2 fl oz concentrate + ~126 fl oz water
For 4-gallon backpack: 8 fl oz concentrate + ~504 fl oz water
4 oz per gallon ratio = 1:32
4 ounces per gallon equals a 1:32 ratio (concentrate:water). Common for:
- Standard pesticide applications
- Herbicide broadcast treatments
- Insecticide spot treatments
- General purpose cleaning concentrates
For 1 gallon: 4 fl oz concentrate + ~124 fl oz water
For 4-gallon backpack: 16 fl oz concentrate + ~496 fl oz water
8 oz per gallon ratio = 1:16
8 ounces per gallon equals a 1:16 ratio (concentrate:water). Common for:
- Heavy-duty cleaners
- Concentrated herbicides
- Strong disinfectants
- Industrial cleaning applications
For 1 gallon: 8 fl oz concentrate + ~120 fl oz water
For 4-gallon backpack: 32 fl oz concentrate + ~480 fl oz water
1 oz per gallon ratio = 1:128
1 ounce per gallon equals a 1:128 ratio (concentrate:water). Common for:
- Very dilute cleaning solutions
- Light foliar applications
- Sanitizing solutions
⚠️ Always check your product label — these are common use cases only. Follow your specific product's instructions for approved rates and applications.
Mixing ratio chart (ounces per gallon and mL per liter)
Values are rounded. Use calculators for exact results and any non-standard ratio.
Use this chart to convert common spray mixing ratios to exact ounces per gallon or milliliters per liter:
💡 Quick tip: For ratios not listed below, use the Oz Per Gallon Calculator or Spray Mix Calculator for exact measurements.
| Ratio (1:X) | Concentrate per 1 gal (fl oz per gal) | Concentrate per 1 L (mL per L) |
|---|---|---|
| 1:8 | 14.22 | 111.11 |
| 1:10 | 11.64 | 90.91 |
| 1:16 | 7.53 | 58.82 |
| 1:20 | 6.10 | 47.62 |
| 1:32 | 3.88 | 30.30 |
| 1:50 | 2.51 | 19.61 |
| 1:64 | 1.97 | 15.38 |
| 1:100 | 1.27 | 9.90 |
Want any ratio (including reverse X:1 labels) or any tank size? Use Oz/gal ↔ Ratio Calculator.
Want the reverse conversion? Use Oz/gal ↔ Ratio.
Oz per gallon chart (reverse lookup)
If your label specifies oz per gallon instead of a ratio, use this chart to find the equivalent ratio:
| Oz Per Gallon | Equivalent Ratio (Concentrate:Water) | For 1 Gallon Mix |
|---|---|---|
| 0.5 oz/gal | 1:256 | 0.5 fl oz concentrate |
| 1 oz/gal | 1:128 | 1 fl oz concentrate |
| 2 oz/gal | 1:64 | 2 fl oz concentrate |
| 3 oz/gal | ~1:43 | 3 fl oz concentrate |
| 4 oz/gal | 1:32 | 4 fl oz concentrate |
| 5 oz/gal | ~1:26 | 5 fl oz concentrate |
| 6 oz/gal | ~1:21 | 6 fl oz concentrate |
| 8 oz/gal | 1:16 | 8 fl oz concentrate |
| 10 oz/gal | ~1:13 | 10 fl oz concentrate |
| 12 oz/gal | ~1:11 | 12 fl oz concentrate |
| 16 oz/gal | 1:8 | 16 fl oz concentrate (1 pint) |
Need a custom oz/gal amount? Use the Oz Per Gallon Calculator for any value including decimals.
Tank quick tables (most-used ratios)
These tables are optimized for what people actually mix: backpack sprayers, hand sprayers, and small tanks.
1:16 tank mixes (concentrate:water)
| Tank size | Concentrate | Water (approx.) |
|---|---|---|
| 1 gal | 7.53 fl oz (≈ 223 mL) | 0.94 gal |
| 2 gal | 15.06 fl oz (≈ 445 mL) | 1.88 gal |
| 4 gal | 30.12 fl oz (≈ 891 mL) | 3.76 gal |
| 5 gal | 37.65 fl oz (≈ 1,114 mL) | 4.71 gal |
| 1 L | 58.82 mL | 0.94 L |
| 5 L | 294.12 mL | 4.71 L |
| 10 L | 588.24 mL | 9.41 L |
| 15 L | 882.35 mL | 14.12 L |
| 20 L | 1,176.47 mL | 18.82 L |
1:32 tank mixes (concentrate:water)
| Tank size | Concentrate | Water (approx.) |
|---|---|---|
| 1 gal | 3.88 fl oz (≈ 115 mL) | 0.97 gal |
| 2 gal | 7.76 fl oz (≈ 229 mL) | 1.94 gal |
| 4 gal | 15.52 fl oz (≈ 459 mL) | 3.88 gal |
| 5 gal | 19.39 fl oz (≈ 573 mL) | 4.85 gal |
| 1 L | 30.30 mL | 0.97 L |
| 5 L | 151.52 mL | 4.85 L |
| 10 L | 303.03 mL | 9.70 L |
| 15 L | 454.55 mL | 14.55 L |
| 20 L | 606.06 mL | 19.39 L |
1:64 tank mixes (concentrate:water)
| Tank size | Concentrate | Water (approx.) |
|---|---|---|
| 1 gal | 1.97 fl oz (≈ 58 mL) | 0.98 gal |
| 2 gal | 3.94 fl oz (≈ 117 mL) | 1.97 gal |
| 4 gal | 7.88 fl oz (≈ 233 mL) | 3.94 gal |
| 5 gal | 9.85 fl oz (≈ 291 mL) | 4.92 gal |
| 1 L | 15.38 mL | 0.98 L |
| 5 L | 76.92 mL | 4.92 L |
| 10 L | 153.85 mL | 9.85 L |
| 15 L | 230.77 mL | 14.77 L |
| 20 L | 307.69 mL | 19.69 L |
For exact concentrate + water (including tbsp/tsp), use: Spray Mix Calculator or Backpack Sprayer Calculator.
FAQ
What is the 2 oz per gallon mixing ratio?
2 oz per gallon is equivalent to a 1:64 ratio (concentrate:water). For a 1-gallon spray tank, mix 2 fl oz of concentrate with approximately 126 fl oz of water. This ratio is common for lawn fertilizers, light herbicides, and mild pesticide applications.
How many ounces per gallon is 1:32?
1:32 equals approximately 4 oz per gallon (3.88 fl oz to be exact). For a 1-gallon final mix, use 4 fl oz of concentrate and 124 fl oz of water. See the chart above for other tank sizes.
What is the 8 oz per gallon ratio?
8 oz per gallon equals a 1:16 ratio (concentrate:water). For a 1-gallon tank, mix 8 fl oz concentrate with approximately 120 fl oz water. This stronger mix is used for concentrated cleaners, heavy-duty herbicides, and disinfectants.
Can I print this mixing chart?
Yes! This page is designed to be print-friendly. Use your browser's print function (Ctrl+P or Cmd+P) to print the charts for quick reference in your garage, shed, or work area. All tables will print cleanly without ads or navigation elements.
What does a 1:32 spray mix ratio mean?
1:32 usually means 1 part concentrate to 32 parts water (concentrate:water). For a 1 gallon final mix, that’s about 3.88 fl oz per gallon.
Is 64:1 the same as 1:64?
Not always. 1:64 typically means concentrate:water. 64:1 often means water:concentrate (reverse order). Match your label wording.
Are these mixing chart values exact?
They’re rounded for quick reference. For exact values (and any ratio or tank size), use the Spray Mix Calculator.
Does oz/gal mean concentrate per gallon of water or per final gallon?
Many labels intend oz/gal as per final gallon of spray mix, but labels vary. Always follow the product label instructions.