Convert Feet of Concrete to Meters Instantly
Use this Feet of Concrete to Meters converter when a footing, wall, curb, beam, slab edge, formwork run or other concrete dimension is measured in feet but your plans, specifications or site notes require meters. Enter any linear feet value for an instant meter result, then compare centimeters, millimeters, inches and yards for the same physical length.
Convert linear feet to meters, reverse meters to feet, combine feet and inches, or convert one concrete length across several common construction units.
Enter the linear length of a concrete element in feet to calculate meters and related metric or imperial units.
Use the linear dimension shown on the plan or measured on site.
Convert a linear concrete length stated in meters back into feet, inches and yards.
Combine a field measurement written in feet and inches, then convert the total linear length to meters.
Enter one linear measurement and convert it to feet, meters, inches, yards, centimeters and millimeters.
The phrase Feet of Concrete to Meters normally describes a linear dimension, not the total amount of concrete. For example, a footing may run 28 feet along a wall, a curb may extend 75 feet, or a beam may span 16 feet. When a metric drawing, supplier note or engineering schedule needs that same distance in meters, use a standard feet-to-meters length conversion.
The international foot is defined as exactly 0.3048 meter. Because this relationship is fixed, converting feet to meters does not require an estimated factor or a location-specific adjustment. Multiply the linear feet value by 0.3048 and keep enough decimal places for the accuracy of the original measurement.
Example: 20 ft × 0.3048 = 6.096 m.
Example: 6.096 m ÷ 0.3048 = 20 ft.
Changing the unit does not change the actual concrete span. It simply changes how the measurement is written. This matters when a project mixes U.S. customary dimensions with SI dimensions in specifications, shop drawings, takeoffs or field notes.
Use this table for quick reference. The meter column uses the exact 0.3048 factor. Values are rounded only for display.
| Feet of Concrete | Meters | Centimeters | Millimeters |
|---|---|---|---|
| 1 ft | 0.3048 m | 30.48 cm | 304.8 mm |
| 2 ft | 0.6096 m | 60.96 cm | 609.6 mm |
| 3 ft | 0.9144 m | 91.44 cm | 914.4 mm |
| 5 ft | 1.524 m | 152.4 cm | 1,524 mm |
| 6 ft | 1.8288 m | 182.88 cm | 1,828.8 mm |
| 8 ft | 2.4384 m | 243.84 cm | 2,438.4 mm |
| 10 ft | 3.048 m | 304.8 cm | 3,048 mm |
| 12 ft | 3.6576 m | 365.76 cm | 3,657.6 mm |
| 15 ft | 4.572 m | 457.2 cm | 4,572 mm |
| 20 ft | 6.096 m | 609.6 cm | 6,096 mm |
| 25 ft | 7.62 m | 762 cm | 7,620 mm |
| 30 ft | 9.144 m | 914.4 cm | 9,144 mm |
| 50 ft | 15.24 m | 1,524 cm | 15,240 mm |
| 75 ft | 22.86 m | 2,286 cm | 22,860 mm |
| 100 ft | 30.48 m | 3,048 cm | 30,480 mm |
4 × 0.3048 = 1.2192 m.
12 × 0.3048 = 3.6576 m.
20 × 0.3048 = 6.096 m.
32.5 × 0.3048 = 9.906 m.
Decimal feet work with the same formula. For example, a measured concrete run of 18.75 ft equals 5.715 m. If the field measurement is written as feet and inches instead, use the mixed-unit calculator above so you do not have to convert the inches to a decimal foot manually.
Construction measurements are often recorded as feet and inches rather than decimal feet. Convert the inch portion to feet by dividing by 12, add it to the whole feet, and then multiply the combined feet by 0.3048.
Example: 12 ft 6 in = (12 + 6 ÷ 12) × 0.3048 = 3.81 m.
A second exact method is to convert the entire measurement to inches first. Twelve feet six inches equals 150 inches, and one inch equals exactly 0.0254 meter. Therefore 150 × 0.0254 also equals 3.81 meters.
This distinction is critical. Feet of concrete in the context of this page means a length. Cubic feet of concrete means volume. They answer different questions and use different conversion factors.
Use this page for footing runs, curb lengths, wall lengths, beam spans, slab edges, formwork runs and other one-dimensional measurements. Multiply feet by 0.3048.
Use a volume converter for actual concrete quantity. One cubic foot is approximately 0.0283168466 cubic meter.
Construction documents and field work frequently cross measurement systems. A structural detail may be based on U.S. customary dimensions while imported equipment, precast components, architectural coordination or a client schedule uses metric units. A reliable conversion lets the same physical dimension be communicated consistently.
The conversion can also help when checking product sheets, formwork systems, reinforcement layouts, modular dimensions or equipment clearances. The important point is to confirm that the source dimension is a length before applying a length conversion.
Confirm that the value is a linear concrete dimension in feet.
Use Feet → Meters for decimal feet or Feet + Inches for a mixed field measurement.
Whole and decimal values such as 12, 18.5 or 42.75 ft are supported.
The tool multiplies the length by the exact 0.3048 meter-per-foot relationship.
Read meters, centimeters and millimeters, then round only as required by the task.
The international foot is defined as exactly 0.3048 meter, so the basic feet-to-meters relationship is fixed rather than approximate. The decimals you see after converting a field measurement come from the value entered and from display rounding, not from a changing conversion factor.
For standards background, see the NIST guidance on SI length units and the BIPM SI Brochure. In practical construction work, however, the precision of the original tape, laser measurement or drawing dimension should guide how many decimals you report.
On a footing plan, a 24-foot continuous run converts to 7.3152 m. A 40-foot concrete wall converts to 12.192 m. A 60-foot curb run converts to 18.288 m. These are pure length conversions; they do not tell you how many cubic meters of concrete the element requires.
To estimate actual concrete volume, you must also know the cross-sectional dimensions. For example, a footing 40 ft long, 2 ft wide and 1 ft deep has a volume of 80 ft³. Converting the length alone to 12.192 m is useful for drawing coordination, but volume estimating requires all three dimensions. Use the Concrete Calculator when you need material quantity rather than only a length conversion.
0.3048 applies to linear feet. Cubic feet use a different factor because all three dimensions are converted.
12 ft 6 in is 12.5 ft, not 12.6 ft. Divide inches by 12 before adding them to feet.
For feet to meters, multiply by 0.3048. Division by 0.3048 is used for meters to feet.
Carry the exact 0.3048 factor through the calculation and round the final converted length as needed.
Concrete work uses several units that contain the word “feet,” but they are not interchangeable. A linear foot describes a one-dimensional distance. A square foot describes two-dimensional area. A cubic foot describes three-dimensional volume. The conversion factor changes because the number of dimensions changes.
| Measurement Type | Example Unit | Metric Equivalent of 1 Unit | Typical Concrete Use |
|---|---|---|---|
| Length | 1 ft | 0.3048 m | Wall run, footing length, beam span, slab edge |
| Area | 1 ft² | 0.09290304 m² | Slab surface, floor area, form face area |
| Volume | 1 ft³ | 0.028316846592 m³ | Concrete quantity, excavation or fill volume |
If a drawing says a wall is 40 ft long, this page is appropriate because the value is linear. If it says a slab is 400 ft², use a square-feet-to-square-meters area converter. If a takeoff gives 80 ft³ of concrete, use a cubic-feet-to-cubic-meters volume converter. Keeping these dimensions separate is one of the simplest ways to avoid major estimating errors.
Decimal feet are common in digital takeoffs, CAD measurements and estimating software. The decimal part is already a fraction of a foot, so no extra inches conversion is required. Simply multiply the complete decimal number by 0.3048. For example, 14.25 ft × 0.3048 = 4.3434 m, while 27.625 ft × 0.3048 = 8.41935 m.
Be careful not to read a decimal value as though it were feet and inches. A dimension of 14.5 ft means fourteen and one-half feet, which equals 14 ft 6 in. A notation such as 14'-5" means fourteen feet five inches, which is approximately 14.4167 decimal feet. The mixed feet-and-inches calculator above handles that distinction automatically.
A practical takeoff usually begins by reading or measuring project dimensions, identifying each concrete element and keeping its units consistent. If a project uses imperial drawings but a metric supplier schedule or quantity report, convert the linear dimensions before combining them with metric widths, depths or component lengths.
For example, suppose a footing run is 48 ft long and the detail gives a width of 600 mm and a depth of 300 mm. Converting the length first gives 14.6304 m. The width is 0.6 m and the depth is 0.3 m, so a metric volume calculation would be 14.6304 × 0.6 × 0.3 = 2.633472 m³. The feet-to-meters step therefore helps create a consistent unit system before the full quantity calculation.
This workflow is generally safer than mixing feet, millimeters and meters inside one multiplication. When every dimension is expressed in the same system before area or volume is calculated, the units themselves provide a useful check against mistakes.
The conversion factor is exact, but your field measurement may not be. A survey dimension, laser measurement, tape reading and preliminary estimate can all have different levels of precision. Keep full calculator precision during intermediate work, then round the final result to a level appropriate for the purpose.
For broad planning, two decimal places in meters may be sufficient. Shop drawings, fabrication coordination or detailed layout may require millimeters. A 20 ft length is exactly 6.096 m, which can also be written as 6,096 mm. If the source measurement itself was only approximate, however, reporting many extra decimals can imply more certainty than the original data supports.
When dimensions will be added together, converted again or used in area and volume formulas, avoid rounding each intermediate value. Carry the exact 0.3048 relationship through the calculation and round the final reported answer.
Mixed-unit projects arise for many reasons. Architectural plans may use feet and inches while imported equipment is documented in millimeters. A precast supplier may issue component dimensions in meters, or a multinational design team may coordinate drawings across different measurement conventions. Converting a concrete length into meters provides a common reference for those discussions.
Metric dimensions also scale cleanly between meters, centimeters and millimeters. Once 25 ft is converted to 7.62 m, the same distance is 762 cm or 7,620 mm without introducing another independent conversion factor. That is useful when a large site dimension must be coordinated with smaller component tolerances or product dimensions.
The converter above does not replace project documents, engineer instructions or survey control. It simply provides a consistent mathematical translation between units so the same physical dimension can be compared accurately.
Continue with related converters such as Feet to Meters, Meters to Feet, Inches to Meters, Yards to Meters, Millimeters to Inches, Cubic Feet to Cubic Meters and Cubic Meters to Cubic Feet. For project quantity calculations, use the Concrete Calculator.
The same physical concrete span can be labeled in feet, meters, centimeters or millimeters. This figure shows the exact relationship without changing the actual length.
When you only need a rough mental check, 1 foot is a little more than 0.3 meter. Ten feet is therefore a little more than 3 meters, 30 feet is a little more than 9 meters, and 100 feet is 30.48 meters. For actual plan coordination, takeoffs or documented measurements, use the exact factor rather than the rough 0.3 shortcut.
The calculator is especially useful for awkward decimals and mixed-unit field notes. A value such as 27.375 ft converts to 8.3439 m, while 14 ft 7 in converts to 4.445 m. Keeping the conversion automated reduces transcription mistakes when many dimensions must be checked.
No. A linear-unit conversion changes only how a length is expressed. If a wall is 20 ft long, calling it 6.096 m does not change its physical size. Concrete quantity changes only when the actual geometry changes. To determine volume, include width and depth or thickness and calculate the complete three-dimensional shape.
This is why length converters and concrete volume calculators should be used for different purposes. Length converters help with dimensional coordination, while volume calculators help with ordering ready-mix, estimating bags, checking truck loads and planning cost.
Quick answers about converting concrete lengths from feet to meters.