Mortar Calculator
Bags of mortar for block or brick.
Enter your values
Enter the number of bricks/blocks you are working with.
Choose one of: Standard brick (30/bag), 8×8×16 block (12/bag).
Enter the price per bag in $.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Mortar bags (80 lb)
- 22
- Units per bag
- 30
- Sand needed
- 13.2 cubic ft
- Estimated cost
- $198.00
- Total weight
- 1,760 lb
Quick answer
One 80 lb bag of mortar lays about 30 standard bricks or 12 concrete blocks.
At a glance
| What it does | Bags of mortar for block or brick. |
|---|---|
| Category | Home & DIY |
| Inputs needed | Number of bricks/blocks, Unit type, Price per bag |
| Main output | Mortar bags (80 lb) |
| Cost | Free — no sign-up, no download |
How to use the Mortar Calculator
- 1Count the bricks or blocks in your wall.
- 2Choose the unit type.
- 3Order 10% extra mortar for waste.
Inputs explained
- Number of bricks/blocks
- Enter the number of bricks/blocks you are working with.
- Unit type
- Choose one of: Standard brick (30/bag), 8×8×16 block (12/bag).
- Price per bag($)
- Enter the price per bag in $.
Worked example
Using the values the calculator loads with:
Inputs
- Number of bricks/blocks600
- Unit typeStandard brick (30/bag)
- Price per bag9 $
Results
- Mortar bags (80 lb)22
- Units per bag30
- Sand needed13.2 cubic ft
- Estimated cost$198.00
- Total weight1,760 lb
Frequently asked questions
Which mortar type?
Type N for general above-grade work, Type S for below grade and load bearing.
How long can I use mixed mortar?
About 90 minutes, or less in hot weather.
What do I need to enter into the Mortar Calculator?
Just 3 values: number of bricks/blocks, unit type, price per bag. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Mortar Calculator work out the answer?
One 80 lb bag of mortar lays about 30 standard bricks or 12 concrete blocks. The working is shown step by step so you can verify the result by hand.
Is the Mortar Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.