Concrete Calculator
Lifestyle ToolsVolume, mix ratio, cement/sand/gravel
Quick Answer
Concrete Calculator: Volume, mix ratio, cement/sand/gravel. Concrete Calculator uses standard everyday life formulas to compute accurate results instantly.
m
m
m
pcs
Strength grade
%
Concrete needed (with waste)
2.06 m³
Net volume2.00 m³
Cement (50kg bags)15
Sand1.40 t
Stone2.45 t
Calculation steps
- 1V = 5 × 4 × 0.1 = 2.000 m³
- 2With 3% waste: 2.000 × 1.03 = 2.060 m³
- 3C25 mix per m³: cement 340 kg + sand 680 kg + stone 1190 kg
- 4Cement bags (50 kg): ceil(2.06 × 340 ÷ 50) = 15
Mix reference per m³
| Grade | Cement kg | Sand kg | Stone kg | Typical use |
|---|---|---|---|---|
| C15 | 240 | 735 | 1215 | Bedding, non-structural |
| C20 | 300 | 700 | 1200 | Foundations, floors |
| C25 | 340 | 680 | 1190 | Beams/slabs/columns (common) |
| C30 | 380 | 660 | 1180 | High-rise structural |
| C35 | 420 | 645 | 1170 | Long-span, bridges |
| C40 | 460 | 630 | 1160 | Special structures |
Ratios are site-mix references for 32.5 cement. Commercial ready-mix is ordered by grade directly (m³ only). One mixer truck carries ~8-12 m³ — for pours under 1 m³ hand-mixing or small batch delivery is more practical.
Was this tool helpful?
How to Use
- Enter scenario values: fill real-life numbers into the Concrete Calculator (defaults work for a quick try).
- Instant results: everything computes live, no button needed.
- Read the advice: results come with practical tips, reference standards and pitfalls.
- Compare options: adjust parameters to compare choices side by side.
Key Points
- Concrete Calculator is a free online everyday life tool — open and use, no sign-up.
- All calculations run locally in your browser; your data never leaves the device.
- Key capability: Volume, mix ratio, cement/sand/gravel.
- Results come with formulas and reference tables so you can verify every number.
Formula & How It Works
Concrete Calculator formula
Concrete Calculator uses standard everyday life formulas to compute accurate results instantly.
FAQ
How do I use the Concrete Calculator?
Open the page and fill in the input fields — results update automatically. Volume, mix ratio, cement/sand/gravel.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.
Related Tools
Medical Treatment Period Calculator
3-24 months by dual tenure tiers, rolling cycleMedical Insurance Reimbursement Calculator
Deductible, rate and annual cap three-segment modelTea Leaf Ratio Calculator
Leaf dose from water volume across 7 tea typesCarbon Footprint Calculator
Grid factor 0.5703 kg/kWh, 9 activity factorsBill Splitter
Split group expenses — who pays whomMobile Data Usage Calculator
Estimate monthly data by activityPhone Plan Comparison
Compare plans side by side — real monthly costDiscount Calculator
Sale price, original price and discount rateRelated Guides
Source & Updates
Based on common formulas and industry conventions. Last updated: 2025-07
Last updated:
Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.
Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.
Cite this page: YiJianSuan. Concrete Calculator[EB/OL]. https://www.yijiansuan.com/en/c/life/concrete
Results provided by this tool are for reference only and do not constitute professional advice.