Acorn
Acorn calculators
Time and pay, job-site materials, school, and shop math. Nothing leaves your browser.
Time and pay
- Time card Hours, lunch, and a printable sheet
- Decimal hours Hours:minutes to decimal — 8:45 is 8.75, not 8.45
- Biweekly timesheet Two-week time card, 40h overtime per week
- Overtime Weekly overtime estimate
- Paycheck estimate Hourly GROSS from rate × hours — not take-home, not tax
- Hourly salary $20/hr × 2,080 hours = $41,600/year GROSS — not net
- Business days Working days between dates, and Net 30 invoice due dates
Job site
- Concrete Bags and yards for a slab or footing
- Gravel Tons and yards for a driveway or pad
- Mulch Yards and bags for a bed or path
- Soil / fill dirt Yards and 40 lb bags for a bed or fill
- Sand Yards and 50 lb bags for a paver bed or sandbox
- Paint Gallons from wall area and coats
- Flooring Tile and LVP boxes for a room, with waste
- Roofing squares 100 sq ft of roof surface, not footprint — pitch stretches the plan
- Drywall Sheets, joint compound, and tape for a room
- Fence Posts, rails, and pickets for a run — piece count only
- Board feet Nominal lumber: ten 2×4×8 = 53.33 bf, not piece count
- Stair stringer Treads = risers − 1; 96 in → 13 risers — not a permit
- Dumpster Roll-off size plus a rough weight check
- Window AC Room BTU chart for a window or portable unit
- Insulation bags Coverage from the bag; 1000 sq ft → 25 bags — not mulch thickness
- Wallpaper rolls 56 sq ft/roll, pattern repeat; 12×10×8 → 8 rolls — not gallons