Contact iCalculator™
We welcome feedback, questions, and suggestions from our users. Whether you’ve spotted an issue, have an idea for a new calculator, or want to share your experience, getting in touch helps us improve iCalculator for everyone.
Before contacting us, you may find an immediate answer in our Frequently Asked Questions, which covers common topics such as calculator accuracy, data sources, privacy, and site usage.
By using this contact form, you confirm that you have read and agree to our Privacy Policy and Terms of Use. If you do not agree with any part of these policies, please contact us before continuing to use the site.
Did You Know?
iCalculator is used by thousands of people every day across the world. Over the years, our calculators have processed hundreds of millions of calculations covering finance, tax, maths, engineering, and science.
The platform continues to grow through regular updates, new calculators, and refinements based on real user feedback. If you’re looking for a calculator you can’t find, or notice something that could be improved, letting us know genuinely makes a difference.
Thinking of Getting in Touch?
If you’ve encountered a bug, please be as specific as possible when describing the issue. Including the page URL, inputs used, and expected result helps us investigate and resolve problems more quickly.
We aim to respond to all genuine enquiries and appreciate the time users take to share feedback or ideas. You can also follow and interact with us on Facebook.
About iCalculator™
iCalculator™ was conceived, created, and continues to be developed by Peter Starmer FCMI, GCGI(LM), GCGI(HR), FInstLM, FdA, who brings over 20 years of managerial and directorial experience across operations, logistics, finance, budgeting, and workforce development.
The original aim of iCalculator was to provide practical tools to support real-world decision-making — from salary assessment and cost-of-employment analysis to logistics optimisation and engineering calculations. Over time, the platform has expanded to support students, educators, professionals, and businesses across many disciplines.
iCalculator™ is an independent online resource offering calculators and supporting information to help users understand how calculations work and apply them confidently to real scenarios.
iCalculator™ is a registered trademark. Use of the iCalculator name or any confusingly similar variation without written authorisation is not permitted. All original content and tools on iCalculator are owned by DiDiMo Ltd unless explicitly stated otherwise.If you believe any content may inadvertently infringe your rights, please contact us and we will investigate promptly.
Frequently Asked Questions
Does iCalculator.com replace professional advice?
No. iCalculator provides estimates and educational tools. It should be used as a guide, with professional advice sought for complex or legally binding decisions.
Can users suggest improvements or new calculators?
Yes. Feedback from users helps guide improvements, corrections, and the development of new calculators based on real-world demand.
Can iCalculator.com help employers estimate workforce costs?
Yes. Employer and payroll calculators help estimate wages, taxes, benefits, and total employment costs, supporting workforce planning and budgeting.
How often is iCalculator.com updated?
Calculators and content are reviewed and updated regularly, especially in areas affected by annual changes such as tax rates, thresholds, and allowances.
How accurate are the calculators on iCalculator.com?
Calculators are built using established formulas, official tax data where applicable, and structured logic. While results are designed to be accurate and reliable, users should always verify outputs for critical financial or legal decisions.
Important Notes
All calculations are provided for guidance only and should not be relied upon as financial, tax, or professional advice. Always verify your results and consult a qualified professional where appropriate.