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Please support RF  Cafe's GoFundMe campaign! Software: RF Cascade Workbook | Espresso Engineering Workbook
RF Stencils for Visio | RF Symbols for Visio | RF Symbols for Office | Cafe Press
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RF Cafe Espresso Engineering Workbook™
Current version is 6.6.2025 - check back often for updates

Newest Additions: Sound ν, λ, τ

Note: The "runtime-files" folder that is part of the .zip file must be kept in the same location as the .xlsm file or it will not run.

Espresso Engineering Workbook: Homepage - RF Cafe

Homepage

Espresso Engineering Workbook: Opamps - RF Cafe

Opamp Calculator

Espresso Engineering Workbook: FM Modulation - RF Cafe

FM Modulation Calculator

Espresso Engineering Workbook: Surface Areas & Volumes - RF Cafe

Surface Area & Volume Calculator

Espresso Engineering Workbook: Smith Chart - RF Cafe

Smith Chart

Component Scaling (Espresso Engineering Workbook) - RF Cafe

Component Scaling Calculator

Fresnel Zone Calculator (Espresso Engineering Workbook) - RF Cafe

Fresnel Zone Calculator

Power Factor Calculator (Espresso Engineering Workbook) - RF Cafe

Power Factor Calculator

Spurious Mixer Products Calculator (Espresso Engineering Workbook) - RF Cafe

Spurious Mixer Product Calculator

Ohm's Law Calculator (Espresso Engineering Workbook) - RF Cafe

Ohm's Law Calculator

Microstrip / Stripline Calculator (Espresso Engineering Workbook) - RF Cafe

Microstrip / Stripline Calculator

Resistors, Inductor, Capacitor Combinations (Espresso Engineering Workbook) - RF Cafe

RLC Combination Calculator

Espresso Engineering Workbook: Cascaded System - RF Cafe

Cascaded System Calculator

Espresso Engineering Workbook: Delta-Wye - RF Cafe

Delta-Wye Calculator

Espresso Engineering Workbook: Inductance - RF Cafe

Inductance Calculator

Espresso Engineering Workbook: Frequency Conversion - RF Cafe

Frequency Conversion Calculator

Espresso Engineering Workbook: Noise Figure - RF Cafe

Noise Figure Calculator

2-Way Path Loss, Espresso Engineering Workbook - RF Cafe - RF Cafe

2-Way Path Loss Calculator

Espresso Engineering Workbook: Radar Blind Speed - RF Cafe

Radar Blind Speed Calculator

Espresso Engineering Workbook: Rectangular Cavity Resonance - RF Cafe

Rectangular Cavity Resonance Calculator

Espresso Engineering Workbook: Voltage Divider - RF Cafe

Voltage Divider Calculator

Espresso Engineering Workbook: VSWR | Return Loss | Gamma - RF Cafe

VSWR | Return Loss | Gamma Calculator

Espresso Engineering Workbook: VBA Code - RF Cafe

VBA Code Sample

Espresso Engineering Workbook: Sound  ν, λ, τ Calculator- RF Cafe

Sound Energy ν, λ, τ Calculator

Espresso Engineering Workbook: FM Sidebands - RF Cafe

FM Sideband Calculator

Butterworth Bandpass Filter Calculator (Espresso Engineering Workbook) - RF Cafe

Butterworth Bandpass Filter Calculator

Butterworth Lowpass Filter Calculator (Espresso Engineering Workbook) - RF Cafe

Butterworth Lowpass Filter Calculator

Butterworth Highpass Filter Calculator (Espresso Engineering Workbook) - RF Cafe

Butterworth Highpass Filter Calculator

Capacitance Calculator (Espresso Engineering Workbook) - RF Cafe

Capacitance Calculator

Helical Resonator Calculator (Espresso Engineering Workbook) - RF Cafe

Helical Resonator Calculator

Coaxial Cable Calculator (Espresso Engineering Workbook) - RF Cafe

Coaxial Cable Calculator

Complex Numbers, Espresso Engineering Workbook - RF Cafe

Complex Number Calculator

Attenuators, Espresso Engineering Workbook - RF Cafe - RF Cafe

Attenuator Calculator

Directional Couplers, Espresso Engineering Workbook - RF Cafe - RF Cafe

Directional Coupler Calculator

Espresso Engineering Workbook: Doppler Shift - RF Cafe

Doppler Shift Calculator

Filters, Espresso Engineering Workbook - RF Cafe - RF Cafe

Filter Calculator

Near Fields, Espresso Engineering Workbook - RF Cafe - RF Cafe

Near Field Calculator

1-Way Path Loss, Espresso Engineering Workbook - RF Cafe - RF Cafe

1-Way Path Loss Calculator

RF Energy ν, λ, τ Calculator, Espresso Engineering Workbook - RF Cafe - RF Cafe

RF Energy ν, λ, τ Calculator

Radar Horizon, Espresso Engineering Workbook - RF Cafe - RF Cafe

Radar Horizon Calculator

Skin Depth, Espresso Engineering Workbook - RF Cafe - RF Cafe

Skin Depth Calculator

Units Conversions, Espresso Engineering Workbook - RF Cafe - RF Cafe

Units Conversion Calculator

Voltage Conversions, Espresso Engineering Workbook - RF Cafe - RF Cafe

Voltage Conversion Calculator

RF Cafe's spreadsheet-based engineering and science calculator - Espresso Engineering Workbook™ (click to download) - is a collection of surface area and volume calculators for many geometric solids. RF Cafe Espresso Engineering Workbook™ is provided at no cost, compliments of my generous sponsors.

Espresso Engineering Workbook v4.20.2025 (new floating window) - RF Cafe

New in this version is a floating window that conveniently lists all the worksheet pages. Just click on a page name to go there. There is a button on the Home page to display all the bottom tabs with page names. Please visit my advertisers to see what they can offer to support your projects.

All of the original calculators from years ago are included, but with a vastly expanded and improved user interface. Error-trapped user input cells help prevent entry of invalid values. An extensive use of Visual Basic for Applications (VBA*) functions now do most of the heavy lifting with calculations, and facilitates a wide user-selectable choice of units for voltage, frequency, speed, temperature, power, wavelength, weight, etc. In fact, a full page of units conversion calculators is included. A particularly handy feature is the ability to specify the the number of significant digits to display. Drop-down menus are provided for convenience.

I been adding new calculators on a regular basis.

For the time being, the VBA code is password protected. At some point, a version might be made available with full access, but during the development stage, I prefer to not expose all my hard work for easy poaching.

A lot of effort has been expended validating calculations, including references from books, magazines, and other software. As always, you are advised to check results against other sources if something seems off. If you do find an error, please report it to me ASAP so it can be corrected with the next release.

The file is in an xlsx format compatible back to Excel 2007 - and it may work for even earlier versions.

In appreciation for RF Cafe's sponsors, hyperlinked thumbnails to their websites are included on the homepage.

* Note: Because VBA code is used, you must allow Excel security to enable macros.

This edition includes the following calculators:

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