CNC Speed and Feed Calculator

Quickly calculate your cutting parameters

The CNC calculator on this page uses the Kienzle formula to instantly compute core milling parameters: spindle speed (n), table feed (Vf), metal removal rate (MRR), required machine power (Pc) and expected surface finish. Adjust the sliders or numeric inputs on the right — the results and the animated cutting visualization on the left update automatically.

How do I use the CNC calculator?

Material Selection ap ae Dc Vf →
İş Mili Devri (n)
5730 dev/dk
Tabla İlerlemesi (Vf)
2292 mm/dk
Talaş Kaldırma (MRR)
34.38
cm³/dk
Tezgah Gücü (Pc)
2.15
kW
Kesme Kuvveti (kc)
2680
N/mm²
Yüzey Kalitesi (Ra)
0.39
µm
Hex Faktörü
1.41
talaş inceltme
Efektif fz
0.1414
mm/diş
Radyal Angajman (ae/Dc)
50%
Which formulas does it use?
n = (Vc × 1000) / (π × Dc)
Vf = n × fzeff × z
MRR = ap × ae × Vf / 1000
Pc = MRR × kc / (60000 × η)
kc = kc1.1 × hm-mc
hex = fz × √(ae/Dc)