ToolPony.comDocumentation

Depreciation calculator

Build an annual straight-line, declining-balance, or sum-of-years’ digits schedule.

Get started

  1. Use the example values or enter your own measurements.
  2. Calculate, then copy the result or download the available details.

Example

Input

17,500 cost, 2,500 salvage, 6 years, straight-line

Expected result

2,500 per year

Try it

Good to know

The calculation runs in your browser. Use consistent units in fields with no explicit unit.

Calculation method

Straight-line divides depreciable cost by useful life. Declining balance applies factor/life to opening book value and stops at salvage. Sum-of-years’ digits allocates by the remaining years’ weights. Amounts are rounded per year.

DSL=C−Sn,Dk,SYD=(C−S)n−k+1n(n+1)/2D_{\mathrm{SL}}=\frac{C-S}{n},\quad D_{k,\mathrm{SYD}}=(C-S)\frac{n-k+1}{n(n+1)/2}

Calculation mode

Straight-line
  • Asset cost
  • Salvage value
  • Useful life
  • Rounding · Two decimal places / Whole amount
Declining balance
  • Asset cost
  • Salvage value
  • Useful life
  • Depreciation factor
  • Rounding · Two decimal places / Whole amount
Sum-of-years’ digits
  • Asset cost
  • Salvage value
  • Useful life
  • Rounding · Two decimal places / Whole amount