Kutatua

Solve Something

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.

Password - Time To Crack calculator.

60 calculations

Cosine Similarity calculator.

60 calculations

PAYE (2022) calculator.

56 calculations

Cosine Similarity (Vector Method) calculator.

53 calculations

PAYE (2021) calculator.

50 calculations

Tanimoto Coefficient Similarity calculator.

49 calculations

Compound Interest calculator.

49 calculations

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

48 calculations

Fibonacci Number calculator.

48 calculations

Password Strength calculator.

48 calculations

Ebbinghaus Forgetting Curve calculator.

47 calculations

Basal Metabolic Rate (BMR) calculator.

47 calculations

Body Fat Percentage calculator.

46 calculations

PAYE (2019) calculator.

46 calculations

PAYE (2023) calculator.

45 calculations

Past/Future Date calculator.

45 calculations

Cosine Similarity (Bag of Words) calculator.

44 calculations

PAYE (2020) calculator.

44 calculations

M-PESA Charges (2023) calculator.

44 calculations

Resting Daily Energy Expenditure (RDEE) calculator.

43 calculations

A visitor has used the Base64 Encode calculator.

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22 Jul, 10:11 PM
22 Jul, 10:11 PM
22 11 22 Jul

A visitor has used the Base64 Encode calculator.

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22 Jul, 10:08 PM
22 Jul, 10:08 PM
22 08 22 Jul

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

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22 Jul, 9:30 PM
22 Jul, 9:30 PM
21 30 22 Jul

A visitor has used the Kilograms Converter calculator.

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22 Jul, 9:29 PM
22 Jul, 9:29 PM
21 29 22 Jul

A visitor has used the Synchronous Motor Speed calculator.

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22 Jul, 9:29 PM
22 Jul, 9:29 PM
21 29 22 Jul

A visitor has used the Past/Future Date calculator.

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22 Jul, 9:08 PM
22 Jul, 9:08 PM
21 08 22 Jul

A visitor has used the Cosine Similarity (Vector Method) calculator.

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22 Jul, 9:07 PM
22 Jul, 9:07 PM
21 07 22 Jul

A visitor has used the Combinations calculator.

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22 Jul, 6:38 PM
22 Jul, 6:38 PM
18 38 22 Jul

A visitor has used the Number-to-String calculator.

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22 Jul, 5:39 PM
22 Jul, 5:39 PM
17 39 22 Jul

A visitor has used the Body Fat Percentage calculator.

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22 Jul, 5:15 PM
22 Jul, 5:15 PM
17 15 22 Jul

A visitor has used the Inches Converter calculator.

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22 Jul, 5:15 PM
22 Jul, 5:15 PM
17 15 22 Jul

A visitor has used the Rot13 calculator.

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22 Jul, 5:03 PM
22 Jul, 5:03 PM
17 03 22 Jul

A visitor has used the Combinations calculator.

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22 Jul, 3:41 PM
22 Jul, 3:41 PM
15 41 22 Jul

A visitor has used the Power Consumption - Heating Time calculator.

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22 Jul, 3:15 PM
22 Jul, 3:15 PM
15 15 22 Jul

A visitor has used the Base64 Encode calculator.

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22 Jul, 3:12 PM
22 Jul, 3:12 PM
15 12 22 Jul

A visitor has used the Temperature Converter calculator.

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22 Jul, 3:08 PM
22 Jul, 3:08 PM
15 08 22 Jul

A visitor has used the Fibonacci Number calculator.

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22 Jul, 3:06 PM
22 Jul, 3:06 PM
15 06 22 Jul

A visitor has used the Base64 Encode calculator.

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22 Jul, 3:06 PM
22 Jul, 3:06 PM
15 06 22 Jul

A visitor has used the Permutations calculator.

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22 Jul, 2:50 PM
22 Jul, 2:50 PM
14 50 22 Jul

A visitor has used the VAT (South Africa) calculator.

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22 Jul, 2:17 PM
22 Jul, 2:17 PM
14 17 22 Jul

A visitor has used the Pixels Converter calculator.

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22 Jul, 1:38 PM
22 Jul, 1:38 PM
13 38 22 Jul

A visitor has used the Body Fat Percentage calculator.

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22 Jul, 1:38 PM
22 Jul, 1:38 PM
13 38 22 Jul

A visitor has used the Height (centimeters, feet and inches) calculator.

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22 Jul, 12:54 PM
22 Jul, 12:54 PM
12 54 22 Jul

A visitor has used the PAYE (2019) calculator.

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22 Jul, 10:42 AM
22 Jul, 10:42 AM
10 42 22 Jul

A visitor has used the PAYE (2019) calculator.

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22 Jul, 10:40 AM
22 Jul, 10:40 AM
10 40 22 Jul

A visitor has used the PAYE (2022) calculator.

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22 Jul, 10:01 AM
22 Jul, 10:01 AM
10 01 22 Jul

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

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22 Jul, 10:01 AM
22 Jul, 10:01 AM
10 01 22 Jul

A visitor has used the Trial Balance calculator.

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22 Jul, 8:26 AM
22 Jul, 8:26 AM
08 26 22 Jul

A visitor has used the Power Consumption - Heating Time calculator.

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22 Jul, 8:04 AM
22 Jul, 8:04 AM
08 04 22 Jul

A visitor has used the Power Consumption - Heating Time calculator.

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22 Jul, 8:02 AM
22 Jul, 8:02 AM
08 02 22 Jul

  United States

807 calculations

  Japan

468 calculations

  Canada

155 calculations

  China

153 calculations

Anonymous Location

146 calculations

  France

59 calculations

  United Kingdom

55 calculations

  Europe

46 calculations

  Germany

44 calculations

  Ukraine

30 calculations

  Kenya

28 calculations

  Brazil

26 calculations

  Vietnam

25 calculations

  Netherlands

19 calculations

  Mexico

18 calculations

  Greece

15 calculations

  India

14 calculations

  Australia

13 calculations

  Colombia

13 calculations

  Iran, Islamic Republic of

13 calculations