Numbers are everywhere. But you don’t have to let them slow you down.

We’ve built a modern, mobile-friendly library of calculators that works: fast and always available.

Our tools are organized into clear categories, so you can find what you need in seconds:

➕ Basic & Complex Math

Basic arithmetic, percentages, areas and volumes. Statistics calculators, similarity calculuators, Fibonacci numbers, Mean, Variance, Standard Deviation, Kurtosis, Skewness to Combinatorics calculators.

➕ Financial & Business

Simple interest, compound interest, Trial Balance, Balance Sheet and its companion, the Common Size Balance sheet. M-PESA charges to VAT calculators.

➕ Science & Engineering

Scientific calculator like Power Consumption - Heating Time, Synchrronous motor speed and unit converters.

➕ Health & Fitness

BMI, BMR, body fat percentage, RDEE to the Ebbinghaus Forgetting Curve calculators.

➕ String Manipulators

SpongeBob Text Generators, uppercase/lowercase converters, Base64 encoders, Rot13 string converters to number-to-string converters.

➕ Date & Time

Past and future date calculators.

➕ Passwords & Entropy

Password strength, time-to-crack calculators and password generators.

Cosine Similarity (Vector Method).

473 calculations

Password - Time To Crack.

303 calculations

Resting Daily Energy Expenditure (RDEE).

253 calculations

Password Strength.

237 calculations

Past/Future Date.

236 calculations

PAYE (2021).

235 calculations

VAT (Kenya).

235 calculations

Number-to-String.

230 calculations

PAYE (2020).

230 calculations

Meters Converter.

225 calculations

PAYE (2022).

224 calculations

Body Fat Percentage.

224 calculations

PAYE (2023).

221 calculations

Cosine Similarity (Bag of Words).

220 calculations

Fibonacci Number.

220 calculations

PAYE (2019).

218 calculations

Ebbinghaus Forgetting Curve.

218 calculations

Basal Metabolic Rate (BMR).

213 calculations

BMI.

213 calculations

Jaccard Index, Jaccard Distance, Jaccard Similarity, Dice Coefficient.

211 calculations

A visitor has used Centimeters Converter.

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13 Oct, 1:23 AM
13 Oct, 1:23 AM
01 23 13 Oct

A visitor has used Binomial Distribution, Mean, Standard Deviation, Variance, Skewness, Kurtosis.

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13 Oct, 1:10 AM
13 Oct, 1:10 AM
01 10 13 Oct

A visitor has used Compound Interest.

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13 Oct, 12:32 AM
13 Oct, 12:32 AM
00 32 13 Oct

A visitor has used Number-to-String.

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12 Oct, 11:13 PM
12 Oct, 11:13 PM
23 13 12 Oct

A visitor has used Fibonacci Sequence.

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12 Oct, 11:12 PM
12 Oct, 11:12 PM
23 12 12 Oct

A visitor has used Password - Time To Crack.

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12 Oct, 11:08 PM
12 Oct, 11:08 PM
23 08 12 Oct

A visitor has used Feet Converter.

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12 Oct, 11:00 PM
12 Oct, 11:00 PM
23 00 12 Oct

A visitor has used Number-to-String.

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12 Oct, 10:49 PM
12 Oct, 10:49 PM
22 49 12 Oct

A visitor has used Balance Sheet.

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12 Oct, 10:37 PM
12 Oct, 10:37 PM
22 37 12 Oct

A visitor has used Base64 Encode.

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12 Oct, 10:19 PM
12 Oct, 10:19 PM
22 19 12 Oct

A visitor has used Number-to-String.

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12 Oct, 10:03 PM
12 Oct, 10:03 PM
22 03 12 Oct

A visitor has used Number-to-String.

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12 Oct, 9:52 PM
12 Oct, 9:52 PM
21 52 12 Oct

A visitor has used PAYE (2022).

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12 Oct, 9:51 PM
12 Oct, 9:51 PM
21 51 12 Oct

A visitor has used Balance Sheet.

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12 Oct, 9:40 PM
12 Oct, 9:40 PM
21 40 12 Oct

A visitor has used Base64 Encode.

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12 Oct, 9:31 PM
12 Oct, 9:31 PM
21 31 12 Oct

A visitor has used Feet Converter.

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12 Oct, 9:09 PM
12 Oct, 9:09 PM
21 09 12 Oct

A visitor has used Simhash Similarity.

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12 Oct, 8:48 PM
12 Oct, 8:48 PM
20 48 12 Oct

A visitor has used Balance Sheet.

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12 Oct, 8:36 PM
12 Oct, 8:36 PM
20 36 12 Oct

A visitor has used PAYE (2021).

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12 Oct, 8:27 PM
12 Oct, 8:27 PM
20 27 12 Oct

A visitor has used M-PESA Charges (2023).

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12 Oct, 8:18 PM
12 Oct, 8:18 PM
20 18 12 Oct

A visitor has used Mean, Variance, Standard Deviation, Kurtosis, Skewness.

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12 Oct, 8:09 PM
12 Oct, 8:09 PM
20 09 12 Oct

A visitor has used Cosine Similarity (Bag of Words).

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12 Oct, 8:00 PM
12 Oct, 8:00 PM
20 00 12 Oct

A visitor has used Cosine Similarity (Bag of Words).

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12 Oct, 7:39 PM
12 Oct, 7:39 PM
19 39 12 Oct

A visitor has used PAYE (2019).

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12 Oct, 7:29 PM
12 Oct, 7:29 PM
19 29 12 Oct

A visitor has used PAYE (2019).

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12 Oct, 7:26 PM
12 Oct, 7:26 PM
19 26 12 Oct

A visitor has used PAYE (2020).

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12 Oct, 7:23 PM
12 Oct, 7:23 PM
19 23 12 Oct

A visitor has used PAYE (2019).

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12 Oct, 7:22 PM
12 Oct, 7:22 PM
19 22 12 Oct

A visitor has used PAYE (2020).

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12 Oct, 7:22 PM
12 Oct, 7:22 PM
19 22 12 Oct

A visitor has used PAYE (2020).

#calculator
12 Oct, 7:21 PM
12 Oct, 7:21 PM
19 21 12 Oct

A visitor has used Body Fat Percentage.

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12 Oct, 7:21 PM
12 Oct, 7:21 PM
19 21 12 Oct

  United States

4169 calculations

  Japan

1593 calculations

Anonymous Location

871 calculations

  China

845 calculations

  Canada

606 calculations

  United Kingdom

563 calculations

  Germany

334 calculations

  France

252 calculations

  Brazil

210 calculations

  Mexico

122 calculations

  Sri Lanka

113 calculations

  Sweden

94 calculations

  Kenya

87 calculations

  Iran, Islamic Republic of

85 calculations

  Bulgaria

80 calculations

  Turkey

80 calculations

  Argentina

77 calculations

  Vietnam

76 calculations

  Romania

75 calculations

  India

73 calculations