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.

Cosine Similarity (Vector Method) calculator.

60 calculations

Password - Time To Crack calculator.

60 calculations

Cosine Similarity calculator.

60 calculations

PAYE (2022) calculator.

59 calculations

PAYE (2020) calculator.

53 calculations

Fibonacci Number calculator.

52 calculations

Compound Interest calculator.

52 calculations

Basic Arithmetic calculator.

52 calculations

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

52 calculations

Tanimoto Coefficient Similarity calculator.

52 calculations

Ebbinghaus Forgetting Curve calculator.

52 calculations

Resting Daily Energy Expenditure (RDEE) calculator.

51 calculations

PAYE (2023) calculator.

50 calculations

PAYE (2021) calculator.

50 calculations

Password Strength calculator.

50 calculations

Inches Converter calculator.

50 calculations

PAYE (2019) calculator.

50 calculations

Basal Metabolic Rate (BMR) calculator.

49 calculations

Cosine Similarity (Bag of Words) calculator.

49 calculations

Body Fat Percentage calculator.

49 calculations

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

#calculator
31 Jul, 11:16 PM
31 Jul, 11:16 PM
23 16 31 Jul

A visitor has used the Temperature Converter calculator.

#calculator
31 Jul, 11:14 PM
31 Jul, 11:14 PM
23 14 31 Jul

A visitor has used the Ebbinghaus Forgetting Curve calculator.

#calculator
31 Jul, 10:42 PM
31 Jul, 10:42 PM
22 42 31 Jul

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

#calculator
31 Jul, 10:35 PM
31 Jul, 10:35 PM
22 35 31 Jul

A visitor has used the PAYE (2020) calculator.

#calculator
31 Jul, 10:28 PM
31 Jul, 10:28 PM
22 28 31 Jul

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

#calculator
31 Jul, 10:14 PM
31 Jul, 10:14 PM
22 14 31 Jul

A visitor has used the Combinations calculator.

#calculator
31 Jul, 10:01 PM
31 Jul, 10:01 PM
22 01 31 Jul

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

#calculator
31 Jul, 9:32 PM
31 Jul, 9:32 PM
21 32 31 Jul

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

#calculator
31 Jul, 9:27 PM
31 Jul, 9:27 PM
21 27 31 Jul

A visitor has used the Ebbinghaus Forgetting Curve calculator.

#calculator
31 Jul, 9:24 PM
31 Jul, 9:24 PM
21 24 31 Jul

A visitor has used the Fibonacci Sequence calculator.

#calculator
31 Jul, 9:20 PM
31 Jul, 9:20 PM
21 20 31 Jul

A visitor has used the Body Fat Percentage calculator.

#calculator
31 Jul, 9:06 PM
31 Jul, 9:06 PM
21 06 31 Jul

A visitor has used the Areas calculator.

#calculator
31 Jul, 8:26 PM
31 Jul, 8:26 PM
20 26 31 Jul

A visitor has used the Volume calculator.

#calculator
31 Jul, 8:25 PM
31 Jul, 8:25 PM
20 25 31 Jul

A visitor has used the BMI calculator.

#calculator
31 Jul, 8:02 PM
31 Jul, 8:02 PM
20 02 31 Jul

A visitor has used the Inches Converter calculator.

#calculator
31 Jul, 7:40 PM
31 Jul, 7:40 PM
19 40 31 Jul

A visitor has used the Acreage calculator.

#calculator
31 Jul, 6:27 PM
31 Jul, 6:27 PM
18 27 31 Jul

A visitor has used the Areas calculator.

#calculator
31 Jul, 6:13 PM
31 Jul, 6:13 PM
18 13 31 Jul

A visitor has used the Past/Future Date calculator.

#calculator
31 Jul, 6:02 PM
31 Jul, 6:02 PM
18 02 31 Jul

A visitor has used the Centimeters Converter calculator.

#calculator
31 Jul, 5:23 PM
31 Jul, 5:23 PM
17 23 31 Jul

A visitor has used the Trial Balance calculator.

#calculator
31 Jul, 4:43 PM
31 Jul, 4:43 PM
16 43 31 Jul

A visitor has used the Kilograms Converter calculator.

#calculator
31 Jul, 4:42 PM
31 Jul, 4:42 PM
16 42 31 Jul

A visitor has used the PAYE (2020) calculator.

#calculator
31 Jul, 4:38 PM
31 Jul, 4:38 PM
16 38 31 Jul

A visitor has used the Basic Arithmetic calculator.

#calculator
31 Jul, 4:35 PM
31 Jul, 4:35 PM
16 35 31 Jul

A visitor has used the Basic Arithmetic calculator.

#calculator
31 Jul, 4:30 PM
31 Jul, 4:30 PM
16 30 31 Jul

A visitor has used the Balance Sheet calculator.

#calculator
31 Jul, 4:29 PM
31 Jul, 4:29 PM
16 29 31 Jul

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

#calculator
31 Jul, 4:28 PM
31 Jul, 4:28 PM
16 28 31 Jul

A visitor has used the Fibonacci Sequence calculator.

#calculator
31 Jul, 3:26 PM
31 Jul, 3:26 PM
15 26 31 Jul

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

#calculator
31 Jul, 3:21 PM
31 Jul, 3:21 PM
15 21 31 Jul

A visitor has used the Readability (Flesch-Kincaid, Gunning Fog, Coleman Liau, SMOG Index) calculator.

#calculator
31 Jul, 2:26 PM
31 Jul, 2:26 PM
14 26 31 Jul

  United States

874 calculations

  Japan

531 calculations

  China

189 calculations

  Canada

175 calculations

Anonymous Location

171 calculations

  United Kingdom

70 calculations

  France

62 calculations

  Europe

47 calculations

  Germany

45 calculations

  Ukraine

32 calculations

  Kenya

30 calculations

  Brazil

27 calculations

  Vietnam

26 calculations

  Netherlands

19 calculations

  Mexico

19 calculations

  India

16 calculations

  Greece

15 calculations

  Australia

13 calculations

  Colombia

13 calculations

  Iran, Islamic Republic of

13 calculations