Concrete Mix Ratios and How to Mix Concrete
A bag of concrete mix needs only water: for an 80 lb bag, QUIKRETE's sheet adds about 6 pt[1] of clean water when mixing by hand, then more only until the mix is stiff and moldable.
Estimates for planning, not professional advice. Read the full notice.
Work it out for your own sizes
Count the bags for your own pourExample to try: Length 10 ft, Width 10 ft, Thickness 4 in
Water per bag, by bag size
Water the maker's data sheet prints for each bag size, beside the yield of the bag
| Bag size | SAKRETE High Strength: water per bag | SAKRETE High Strength: yield per bag | QUIKRETE 1101: starting water | QUIKRETE 1101: most water expected |
|---|---|---|---|---|
| 60 lb | 2.5 qts (per SAKRETE's data sheet, checked Nov 12, 2026) | 0.45 ft³ (per SAKRETE's data sheet, checked Nov 12, 2026) | 4 pt (per QUIKRETE's data sheet, checked Nov 12, 2026) | 7 pt (per QUIKRETE's data sheet, checked Nov 12, 2026) |
| 80 lb | 3.5 qts (per SAKRETE's data sheet, checked Nov 12, 2026) | 0.6 ft³ (per SAKRETE's data sheet, checked Nov 12, 2026) | 6 pt (per QUIKRETE's data sheet, checked Nov 12, 2026) | 9 pt (per QUIKRETE's data sheet, checked Nov 12, 2026) |
| 90 lb | 4.25 qts (per SAKRETE's data sheet, checked Nov 12, 2026) | 0.66 ft³ (per SAKRETE's data sheet, checked Nov 12, 2026) | 7 pt (per QUIKRETE's data sheet, checked Nov 12, 2026) | 10 pt (per QUIKRETE's data sheet, checked Nov 12, 2026) |
Product names are trademarks of their owners. HoneyDoMath is not affiliated with, sponsored by or endorsed by these makers. Figures come from each maker's published sheets and are shown for information only.
Each maker prints its own water for its own mix. The sheets give these as starting amounts; the consistency decides the rest.
Mixing by hand
Work the mix with a shovel, rake or hoe and add water as needed until a stiff, moldable consistency is achieved. Be sure there are no dry pockets of material. Do not leave standing puddles of water.
*Water demands shown are to be used as a starting reference. More water may be required to achieve desired consistency. Avoid overwatering.
For how many bags a pour takes, see bags of concrete in a yard.
The 1:2:3 mix: what is printed
One maker's portland cement sheet prints a typical concrete mix by volume: 1 part[3] cement, 2 parts[3] sand and 3 parts[3] gravel. A premixed bag is already blended, so the only thing added is water; the sheets above print no water-to-cement ratio, only water per bag.
Typical mix designs (by volume) for some applications are listed below: Concrete Mix 1 Part QUIKRETE Portland Cement 2 Parts QUIKRETE All-Purpose Sand (ASTM C33) 3 Parts QUIKRETE All-Purpose Gravel (ASTM C33)
What too much water does
Excess water that results in a flowable mix will result in decreased strengths and durability and can cause cracking, dusting and scaling.
For each application type, use the minimum amount of water necessary to achieve the desired consistency. Adding too much water may weaken the product and potentially cause durability issues.
The strength page lists the strength each bag prints, and concrete vs cement covers what is in the bag.
Questions
How much water do I add per bag of concrete?
The table gives the water each maker prints for each bag size. The sheets treat it as a starting amount: more may be needed to reach the right consistency, and the sheets warn against overwatering.
What is the mix ratio for concrete?
One maker's portland cement sheet prints a typical concrete mix by volume, shown above. A premixed bag is already blended and takes water only.
Can I mix concrete by hand?
Yes. QUIKRETE's sheet says its concrete mix may also be mixed by hand in a mixing container, working the water in with a shovel, rake or hoe until the consistency is stiff and moldable.
What happens with too much water in concrete?
SAKRETE's sheet says excess water that makes a flowable mix gives decreased strengths and durability and can cause cracking, dusting and scaling.
Calculate it for your project
Enter your own sizes to get the amount to buy or the layout figures, with the working shown and a page to print.
Try your own sizes in the bag calculatorSources (3)
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QUIKRETE Concrete Mix No. 1101 data sheet (opens in new tab), The Quikrete Companies, Revised October 2022.
Manufacturer data.
“QUIKRETE Concrete Mix may also be mixed by hand. Empty concrete bags into a suitable mixing container. For each 80 lb (36.2 kg) bag of mix, add approximately 6 pt (2.8 L) of clean water.”
“Work the mix with a shovel, rake or hoe and add water as needed until a stiff, moldable consistency is achieved. Be sure there are no dry pockets of material. Do not leave standing puddles of water.”
“Transcribed from the mixing water table of the data sheet (package size lb (kg), starting water content pt (L), maximum expected water content pt (L)), row: 60 (27.2) 4 (1.9) 7 (3.3)”
“Transcribed from the mixing water table of the data sheet (package size lb (kg), starting water content pt (L), maximum expected water content pt (L)), row: 80 (36.2) 6 (2.8) 9 (4.3)”
“Transcribed from the mixing water table of the data sheet (package size lb (kg), starting water content pt (L), maximum expected water content pt (L)), row: 90 (40.8) 7 (3.3) 10 (4.7)”
Per QUIKRETE's data sheet, checked Nov 12, 2026. Figures and codes change; verify with the source. Back to where this is used (Source 1) -
SAKRETE High Strength Concrete Mix technical data sheet (opens in new tab), SAKRETE of North America, Technical data sheet, 2023 (sakrete.com copy).
Manufacturer data.
“*Water demands shown are to be used as a starting reference. More water may be required to achieve desired consistency. Avoid overwatering.”
“Excess water that results in a flowable mix will result in decreased strengths and durability and can cause cracking, dusting and scaling.”
“Transcribed from a row of the data sheet's mixing water table (package size, yield, water): 60 lb 27.2 kg 0.45 ft3 .012 m3 2.5 qts 2.4 L”
“60 lb 0.45 ft3 2.5 qts”
“Transcribed from a row of the data sheet's mixing water table (package size, yield, water): 80 lb 36.2 kg 0.6 ft3 .016 m3 3.5 qts 3.3 L”
“80 lb 0.6 ft3 3.5 qts”
“Transcribed from a row of the data sheet's mixing water table (package size, yield, water): 90 lb 40.8 kg 0.66 ft3 .02 m3 4.25 qts 4.0 L”
“90 lb 0.66 ft3 4.25 qts”
Per SAKRETE's data sheet, checked Nov 12, 2026. Figures and codes change; verify with the source. Back to where this is used (Source 2) -
QUIKRETE Portland Cement No. 1124 data sheet (opens in new tab), The Quikrete Companies, Revised August 2022.
Manufacturer data.
“Typical mix designs (by volume) for some applications are listed below: Concrete Mix 1 Part QUIKRETE Portland Cement 2 Parts QUIKRETE All-Purpose Sand (ASTM C33) 3 Parts QUIKRETE All-Purpose Gravel (ASTM C33)”
“For each application type, use the minimum amount of water necessary to achieve the desired consistency. Adding too much water may weaken the product and potentially cause durability issues.”
Per QUIKRETE's data sheet, checked Nov 12, 2026. Figures and codes change; verify with the source. Back to where this is used (Source 3)
These are summaries of what the sources say, not professional advice. Codes and product data change. Check with your building department and the product label about your own project.