Use this chemistry calculator to reproduce a named relationship with explicit quantities and units for study, laboratory planning, or an independent numerical check.

Diffraction order

Order of the reflection.

d-spacing (Å)

Spacing between lattice planes in angstroms.

Wavelength (Å)

X-ray wavelength in angstroms.

Solve Bragg's law n*lambda = 2*d*sin(theta) for the diffraction angle theta in degrees. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Bragg angle (°)

Bragg diffraction angle theta from the normal.

• Crystallographic calculations assume the stated ideal lattice, indexing, wavelength, occupancy, and unit-cell geometry. Defects, strain, texture, thermal expansion, mixed phases, and instrumental corrections are outside the compact model.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check units and significant figures, compare the result with limiting cases, and use measured or source-specific constants where available. Laboratory, safety, and regulatory decisions require validated methods and appropriate uncertainty analysis.

• D-Spacing from Bragg's Law Calculator

  Solve Bragg's law n*lambda = 2*d*sin(theta) for the interplanar spacing d in angstroms.

• First Order Integrated Rate Calculator

  Solve the first-order integrated rate law ln([A]₀/[A]) = k·t for the remaining concentration.

• Scherrer Equation Calculator

  Estimate crystallite domain size with the Scherrer equation D = K*lambda/(beta*cos(theta)) from XRD peak broadening.