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).

486 calculations

Password - Time To Crack.

317 calculations

Resting Daily Energy Expenditure (RDEE).

272 calculations

Password Strength.

255 calculations

PAYE (2021).

255 calculations

Past/Future Date.

251 calculations

VAT (Kenya).

248 calculations

Number-to-String.

243 calculations

PAYE (2020).

243 calculations

PAYE (2022).

240 calculations

Body Fat Percentage.

238 calculations

Cosine Similarity (Bag of Words).

236 calculations

PAYE (2023).

234 calculations

Meters Converter.

234 calculations

Fibonacci Number.

232 calculations

Ebbinghaus Forgetting Curve.

226 calculations

Trial Balance.

226 calculations

PAYE (2019).

225 calculations

BMI.

224 calculations

Basal Metabolic Rate (BMR).

224 calculations

A visitor has used Gigabytes Converter.

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17 Oct, 12:19 AM
17 Oct, 12:19 AM
00 19 17 Oct

A visitor has used Password Strength.

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17 Oct, 12:05 AM
17 Oct, 12:05 AM
00 05 17 Oct

A visitor has used Resting Daily Energy Expenditure (RDEE).

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16 Oct, 11:21 PM
16 Oct, 11:21 PM
23 21 16 Oct

A visitor has used Body Fat Percentage.

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16 Oct, 11:19 PM
16 Oct, 11:19 PM
23 19 16 Oct

A visitor has used BMI.

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16 Oct, 11:08 PM
16 Oct, 11:08 PM
23 08 16 Oct

A visitor has used Resting Daily Energy Expenditure (RDEE).

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16 Oct, 11:05 PM
16 Oct, 11:05 PM
23 05 16 Oct

A visitor has used Jaccard Index, Jaccard Distance, Jaccard Similarity, Dice Coefficient.

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16 Oct, 10:56 PM
16 Oct, 10:56 PM
22 56 16 Oct

A visitor has used Fibonacci Sequence.

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16 Oct, 10:53 PM
16 Oct, 10:53 PM
22 53 16 Oct

A visitor has used Combinations.

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16 Oct, 10:44 PM
16 Oct, 10:44 PM
22 44 16 Oct

A visitor has used Balance Sheet.

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16 Oct, 10:42 PM
16 Oct, 10:42 PM
22 42 16 Oct

A visitor has used Body Fat Percentage.

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16 Oct, 10:39 PM
16 Oct, 10:39 PM
22 39 16 Oct

A visitor has used Past/Future Date.

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16 Oct, 10:29 PM
16 Oct, 10:29 PM
22 29 16 Oct

A visitor has used Body Fat Percentage.

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16 Oct, 10:15 PM
16 Oct, 10:15 PM
22 15 16 Oct

A visitor has used BMI.

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16 Oct, 10:04 PM
16 Oct, 10:04 PM
22 04 16 Oct

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

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16 Oct, 10:00 PM
16 Oct, 10:00 PM
22 00 16 Oct

A visitor has used Fibonacci Sequence.

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16 Oct, 9:52 PM
16 Oct, 9:52 PM
21 52 16 Oct

A visitor has used Combinations.

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16 Oct, 9:46 PM
16 Oct, 9:46 PM
21 46 16 Oct

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

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16 Oct, 9:39 PM
16 Oct, 9:39 PM
21 39 16 Oct

A visitor has used Cosine Similarity (Vector Method).

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16 Oct, 9:24 PM
16 Oct, 9:24 PM
21 24 16 Oct

A visitor has used Past/Future Date.

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16 Oct, 9:24 PM
16 Oct, 9:24 PM
21 24 16 Oct

A visitor has used Permutations.

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16 Oct, 9:22 PM
16 Oct, 9:22 PM
21 22 16 Oct

A visitor has used Body Fat Percentage.

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16 Oct, 9:16 PM
16 Oct, 9:16 PM
21 16 16 Oct

A visitor has used VAT (Kenya).

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16 Oct, 9:11 PM
16 Oct, 9:11 PM
21 11 16 Oct

A visitor has used BMI.

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16 Oct, 9:05 PM
16 Oct, 9:05 PM
21 05 16 Oct

A visitor has used Pounds (lb) Converter.

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16 Oct, 9:02 PM
16 Oct, 9:02 PM
21 02 16 Oct

A visitor has used VAT (South Africa).

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16 Oct, 8:58 PM
16 Oct, 8:58 PM
20 58 16 Oct

A visitor has used Fibonacci Sequence.

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16 Oct, 8:57 PM
16 Oct, 8:57 PM
20 57 16 Oct

A visitor has used Megabytes Converter.

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16 Oct, 8:53 PM
16 Oct, 8:53 PM
20 53 16 Oct

A visitor has used Combinations.

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16 Oct, 8:48 PM
16 Oct, 8:48 PM
20 48 16 Oct

A visitor has used Basal Metabolic Rate (BMR).

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16 Oct, 8:30 PM
16 Oct, 8:30 PM
20 30 16 Oct

  United States

4332 calculations

  Japan

1660 calculations

Anonymous Location

906 calculations

  China

887 calculations

  United Kingdom

682 calculations

  Canada

616 calculations

  Germany

341 calculations

  France

259 calculations

  Brazil

239 calculations

  Mexico

136 calculations

  Bulgaria

134 calculations

  Sri Lanka

114 calculations

  Kenya

96 calculations

  Sweden

95 calculations

  Iran, Islamic Republic of

87 calculations

  Turkey

87 calculations

  Europe

86 calculations

  India

81 calculations

  Argentina

80 calculations

  Vietnam

78 calculations