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Instant Access To All Our Calculators In Just 3 Steps

  1. Subscribe
  2. Log in
  3. Calculate

You will then have unlimited access to use all our calculators for just £1 for the first month then £10 per month afterwards.

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Calculator Screen Shots

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Why Should You Subscribe?

Here’s why we think subscribing to Blackmonk Engineering Calculators is great value.

Save Time And Money With Our Web Based Calculators

  • No need to write, check and explain your own hand written or spreadsheet calculations
  • No need to research the theory and read the text books before you can start
  • No need to waste time ensuring that you are using an up to date version of a calculation

All of our calculators are based on industry standard methods to ensure the results are reliable and accurate.

When you subscribe to our calculators, you also get full access to all the calculator documentation which explains each calculator’s basis and methods.  The documentation is written to let you easily understand and verify the calculations.  The documenation also includes worked examples to help you understand how the calculators work in practical situations.

We have developed a whole range of process calculations for many applications including:

  • Fluid flow
  • Compressible flow pressure drop
  • Pump sizing
  • Control valve sizing
  • Restriction orifice plate sizing
  • Gas-liquid separator vessel design
  • Tank and vessel sizing
  • Pressure Equipment Directive classification

The calculation inputs and results can be saved on our secure servers or copied and pasted into a spreadsheet or other application if required.

Accurate And Easy To Use

Our calculators are accurate and very user friendly allowing you to quickly produce high quality results without expensive software licences and specialist training.

All our calculators are tested and validated by professional process engineers.  We use them for our process design work and we’re confident you will benefit from the accuracy, ease of use and security too.

All You Need Is A Browser

Our calculators are web based so that you can easily access them from anywhere in the world whether you are in the office, on site or with clients.  All you need is an internet browser.  The calculators work with all major browsers including Internet Explorer, Firefox and Safari.

There is nothing to download or install.  All of the calculations are performed on our secure servers so that we can look after all the IT requirements.  You only need access to the internet.

There Are More Calculators To Come

We are adding calculators to the site all the time.  As a subscriber you decide which calculators we build next.  Just let us know which new calculators you need and we will do our very best to create them.

30 Day Unconditional Money Back Guarantee

If you are not completely satisfied with our calculators, simply contact us within 30 days for a full, no-hassle refund.

Create Your £1 Trial Membership Account

You will be charged just £1 for the first month and then £10 per month after your trial.

You may cancel your membership at any time.

Join Now

We use PayPal secure online payment processing.  You can pay with a credit card or PayPal account.

Still Have Questions?

Click here to go to the frequently asked questions page.