Quartz Crystal Calculator – Timing Devices Europe
Tools / Quartz Calculator
ENGINEERING TOOL

Quartz Crystal
Calculator

Load capacitance, frequency deviation, pullability and Pierce oscillator dimensioning — all calculations for your quartz circuit.

Input — Load Capacitance
Formula
CL,eff = (C1 × C2) / (C1 + C2) + Cstray
ΔCL = CL,eff − CL,spec
Result
⚙️
Enter values and
press "Calculate"
Input — Frequency Deviation
Formulas
Δf/f = Cm / (2(C0+CL)²) × ΔCL
f(T) = f₀ × (1 + α(T−T₀)²)
Result
📐
Enter values and
press "Calculate"
Input — Pierce Oscillator
Note: Recommended C1/C2 values are starting points. Subtract actual PCB layout stray capacitances. Verification with network analyzer recommended.
Result
🔧
Enter values and
press "Calculate"
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