CalculationTime

Home, Trade & Construction

Topsoil Calculator

Full calculator

Home, Trade & Construction

Topsoil Calculator

Live answer2.72 yd³2.47 yd³ base · 84 bags at 25 L · $122.22 bulk
Live result2.72 yd³2.47 yd³ base · 84 bags at 25 L · $122.22 bulk
Formula used

Area square feet = length feet × width feet. Depth feet = depth inches ÷ 12. Base volume cubic feet = area × depth feet. Cubic yards = cubic feet ÷ 27. Order volume = base volume × (1 + allowance percent ÷ 100). Cubic metres = cubic yards × 0.764554857984. Litres = cubic metres × 1000. Bags = ceiling(litres ÷ bag size litres).

This is the method behind the answer, so the result can be checked rather than simply trusted.

Live math canvas

Your numbers, formula and explanation together

Topsoil Calculator: 2.72 yd³. 2.47 yd³ base · 84 bags at 25 L · $122.22 bulk

Formula applied

The exact method behind this answer

CalculationTime keeps the method visible so the number can be checked instead of blindly trusted.

Area square feet = length feet × width feet. Depth feet = depth inches ÷ 12. Base volume cubic feet = area × depth feet. Cubic yards = cubic feet ÷ 27. Order volume = base volume × (1 + allowance percent ÷ 100). Cubic metres = cubic yards × 0.764554857984. Litres = cubic metres × 1000. Bags = ceiling(litres ÷ bag size litres).
  1. Apply the formulaArea square feet = length feet × width feet. Depth feet = depth inches ÷ 12. Base volume cubic feet = area × depth feet. Cubic yards = cubic feet ÷ 27. Order volume = base volume × (1 + allowance percent ÷ 100). Cubic metres = cubic yards × 0.764554857984. Litres = cubic metres × 1000. Bags = ceiling(litres ÷ bag size litres).2.72 yd³2.47 yd³ base · 84 bags at 25 L · $122.22 bulk

Your live breakdown

Current inputs in the calculation

These values come from the controls above and update when the calculator changes.

Area length
20 ft
Measure the longest side of the bed, lawn patch or raised area in feet.
Area width
10 ft
Measure the average width in feet. For irregular beds, use a sensible average and write a note on the printout.
Topsoil depth
4 in
Enter the planned spread depth. Common top-dressing jobs may be shallow; new beds often need more.
Settlement / ordering allowance
10 %
Optional allowance for settling, uneven ground, spillage and ordering margin.
Bag size
25 L
Use the size printed on the bag if buying bagged topsoil.
Bulk price
45 $/yd³
Optional supplier price for a rough bulk-order cost note.

Resulting answer

2.72 yd³

2.47 yd³ base · 84 bags at 25 L · $122.22 bulk

Answer
2.72 yd³
Live support
2.47 yd³ base · 84 bags at 25 L · $122.22 bulk

Assumptions used

What this answer assumes

Best for garden beds, lawn repairs, raised beds, landscape quotes, bagged-soil shopping, bulk-delivery calls and classroom volume worksheets where the depth and allowance need to stay auditable.

  • The calculator treats the entered area as a rectangle or an averaged rectangular equivalent for planning purposes.
  • Depth is entered in inches and converted to feet before volume is calculated.
  • The allowance is shown separately so settling, uneven ground and ordering margin do not hide the measured soil requirement.
  • Bag count is rounded up to whole bags using the entered litre size; real bag fill, moisture and compaction can vary.
  • This is a homeowner and landscaping estimate, not a geotechnical, drainage, structural or certified material specification.

Master’s Tip

How to use the result well

Master’s Tip: keep depth honest. A one-inch change over a large lawn or garden bed can add several cubic yards, so print the planned depth, allowance and supplier unit before ordering.

Printable record

What belongs in the saved calculation

Save the inputs, result, formula, assumptions, page URL and date together so the calculation can be reviewed later.

Area length
20 ft
Measure the longest side of the bed, lawn patch or raised area in feet.
Area width
10 ft
Measure the average width in feet. For irregular beds, use a sensible average and write a note on the printout.
Topsoil depth
4 in
Enter the planned spread depth. Common top-dressing jobs may be shallow; new beds often need more.
Settlement / ordering allowance
10 %
Optional allowance for settling, uneven ground, spillage and ordering margin.

Visual grid

This result measures part of the space you live in

Length, area, volume and material estimates are grid problems too: measure the space, account for edges and allowances, then turn the pattern into a number you can use.

Micro-timehours, minutes, shiftsHuman scaledays, weeks, projectsMacro-timemonths, years, calendars
Measured output2.72 yd³

Space calculations turn a real surface, room, run or volume into cells, edges and allowances that can be quoted, ordered or checked.

CalculationTime

Topsoil Calculation Report

Report date:

2.72 yd³2.47 yd³ base · 84 bags at 25 L · $122.22 bulk

Inputs

Area length
20 ft
Area width
10 ft
Topsoil depth
4 in
Settlement / ordering allowance
10 %
Bag size
25 L
Bulk price
45 $/yd³

Method

Area square feet = length feet × width feet. Depth feet = depth inches ÷ 12. Base volume cubic feet = area × depth feet. Cubic yards = cubic feet ÷ 27. Order volume = base volume × (1 + allowance percent ÷ 100). Cubic metres = cubic yards × 0.764554857984. Litres = cubic metres × 1000. Bags = ceiling(litres ÷ bag size litres).

  1. For a 20 ft by 10 ft bed at 4 inches deep, area = 200 ft² and depth = 4 ÷ 12 = 0.3333 ft. Base volume = 66.67 ft³, which is 66.67 ÷ 27 = 2.47 yd³. With a 10% allowance, the order volume is about 2.72 yd³.

Assumptions

  • The calculator treats the entered area as a rectangle or an averaged rectangular equivalent for planning purposes.
  • Depth is entered in inches and converted to feet before volume is calculated.
  • The allowance is shown separately so settling, uneven ground and ordering margin do not hide the measured soil requirement.
  • Bag count is rounded up to whole bags using the entered litre size; real bag fill, moisture and compaction can vary.

Notes

Use this space on the printed report for client, supplier, classroom, job-location, measurement, quote or approval notes.

Source: https://www.calculationtime.com/calculators/topsoil-calculator

This report shows the calculation inputs, formula, assumptions and result for review. It is not legal, payroll, tax, engineering, financial or academic advice unless a qualified professional confirms the applicable rules.