CalcaTools

Antilog Calculator

An Antilog Calculator is a free online tool that solves antilog formula using antilog formula, inverse logarithm, 10^x. Students, teachers, and engineers use it to check homework, prep for exams, and verify hand calculations against published guidance from Wolfram MathWorld.

Last updated: June 2026 · Free · No sign-up required

Results

Enter values above and click Calculate to see your result instantly.

Quick reference

antilog (10^x)Result
10^01
10^110
10^2100
10^2.3010≈ 200
10^-10.1

functions Shows the working, not just the answer

For students and teachers, the final number is only half the value. Every math tool here exposes the formula it applied, the intermediate steps, and the rounding rule, so you can follow along, check your homework, or use the answer in a proof or report with confidence.

calculate Accurate to the spec

Calculations use 64-bit floating point with sensible rounding for the domain (currency to 2 decimals, percentages to 4 decimals, algebra to 6 significant figures). Where exact rational arithmetic matters — fractions, factorials, simplification — we use a dedicated BigNumber path so 1/3 + 1/6 returns ½, not 0.49999.

school Free for classroom use

Educators are welcome to link to any math calculator on CalcaTools from a class site, Google Classroom, or worksheet. The pages are mobile-friendly, free, ad-supported (so we can keep them free) and have no sign-up wall — students just click and use them in class or at home.

tips_and_updates Pair with the spoke articles

Below the calculator we link a small set of plain-English explainer pages — "What is a percentage?", "Why does PEMDAS matter?", and so on. They cover the underlying concept in 4–6 short paragraphs. Read those before the calculator if the topic is new, or after if you want the extra context.

Interpretation guide

Baseantilog of x
10 (common)10^x
e (natural)e^x = exp(x)
2 (binary)2^x
any bb^x

Formula & methodology

Formula: antilog_b(x) = b^x; common antilog = 10^x; natural antilog = e^x

How antilog works

The antilogarithm reverses a logarithm. If log_b(y) = x, then the antilog of x is y = b^x. It simply raises the base to the power of your number.

Example

Find the common antilog of 2.3010. antilog = 10^2.3010 ≈ 200. This checks out because log10(200) ≈ 2.3010.

The "common" antilog uses base 10 and the "natural" antilog uses base e (the exp function). Always match the base to the logarithm you are inverting.

Authoritative source: Wolfram MathWorld

Frequently asked questions

What is an antilog?
The antilog (antilogarithm) is the inverse of a logarithm. If log_b(y) = x, then the antilog of x in base b is y = b^x. In other words, taking the antilog undoes the log: it raises the base to the power of your value. The common antilog uses base 10, so antilog(x) = 10^x.
How do you calculate antilog?
Raise the base to the power of the number. For the common (base-10) antilog of 3, compute 10^3 = 1,000. For the natural antilog of 1, compute e^1 = 2.718. On a calculator, the antilog button is usually 10^x (the shift of the log key) or e^x (shift of ln).
What is the difference between common and natural antilog?
The common antilog uses base 10: antilog(x) = 10^x, and it inverts log10. The natural antilog uses base e ≈ 2.71828: antilog(x) = e^x = exp(x), and it inverts ln. Use whichever base matches the logarithm you are reversing; mixing them gives wrong results.
What is the antilog of 2?
It depends on the base. The common antilog of 2 is 10^2 = 100, the natural antilog of 2 is e^2 ≈ 7.389, and the base-2 antilog of 2 is 2^2 = 4. Without a stated base, antilog usually means base 10, so the answer is 100.
Where are antilogs used?
Antilogs convert logarithmic scales back to linear values. They appear in decibels (sound), pH (chemistry), the Richter scale (earthquakes), and anywhere data is stored or computed in log form and then needs to be read as an ordinary number. Before electronic calculators, antilog tables were used alongside log tables for multiplication.