Log Base 10 Calculator Reference Values

Calculate common logarithm log10(x) for positive inputs.

Author

Prof. Oleksandr Kovalenko

Math editorial contributor

Ukrainian cybersecurity researcher at ETH Zurich, focused on post-quantum cryptographic protocols

Reviewed for accuracy by

Dr. Emeka Nwosu

Math content reviewer

Nigerian legal scholar with an SJD from Yale, focused on international trade law and African continental free trade agreements

Last updatedFebruary 22, 2026

PublishedFebruary 22, 2026

Table of Contents

  1. All value pages
  2. Reference table
  3. FAQs
  4. Methodology and review
  5. Related conversions

Reference Value Index

This page lists 20 reference values for quick browsing and lookup.

Back to converter page · View HTML sitemap

All Reference Values

Reference Table

Log Base 10 Calculator reference values
Number (x)Common Log log10(x)
0.1 Number-1 log10(x)
0.2 Number-0.69897 log10(x)
0.25 Number-0.60206 log10(x)
0.5 Number-0.30103 log10(x)
0.75 Number-0.124939 log10(x)
1 Number0 log10(x)
2 Number0.30103 log10(x)
3 Number0.477121 log10(x)
4 Number0.60206 log10(x)
5 Number0.69897 log10(x)
6 Number0.778151 log10(x)
7 Number0.845098 log10(x)
8 Number0.90309 log10(x)
9 Number0.954243 log10(x)
10 Number1 log10(x)
20 Number1.30103 log10(x)
30 Number1.477121 log10(x)
50 Number1.69897 log10(x)
75 Number1.875061 log10(x)
100 Number2 log10(x)

Frequently Asked Questions

Frequently asked questions for Log Base 10 Calculator and its reference values.

What does the Log Base 10 Calculator calculator do?

It calculates solving orders-of-magnitude problems and base-10 logarithmic calculations from the values you enter.

What formula does the Log Base 10 Calculator calculator use?

Common log is the logarithm base 10: log10(x).

What inputs are valid?

For real-number results, enter x > 0.

When would I use this?

solving orders-of-magnitude problems and base-10 logarithmic calculations

Methodology and Review

Each row on this page links to a value detail page derived from the same conversion data file as the main calculator and reference table. This reduces inconsistencies across page variants.

Editorial metadata and structured data are rendered across the converter page and linked value pages. Review policies are documented in our review process and editorial policy.