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Expressing length through different units Calculator expresses a given length through the different units. |

Area expression with different units Calculator expresses the given area through the different units of area measurement. |

Angle in time units to degrees This online calculator converts angle given in time units (i.e. in hours) to "normal" degrees units. |

Angle in degrees to time units This online calculator converts angle given in degrees to time units (i.e. hours). |

Angle in degrees to time units and vice versa This online calculator converts angle between degrees and time units (i.e. hours). |

PSAT/NMSQT Practice Tests Score Calculator This calculator helps you to score your official practice tests results. |

Universal High School GPA Calculator This online calculator lets you figure out your high school GPA. Even more, it provides you with editable conversion tables and weights, so you can tweak calculations in case you need it. |

Run-length encoding This online calculator compresses the entered string using the run-length encoding (RLE) method. |

Run-length encoding This online calculator compresses the entered string using the run-length encoding (RLE) method. |

Hide information inside picture This online calculator hides a text message inside a digital image using a Least Significant Bit steganography method |

Reveal information inside stego picture This online calculator extracts a text message from a stego image |

Least Significant Bit steganography The first online calculator on this page uses a Least Significant Bit steganographic method to hide a message in a digital image. The second online calculator reveals the message hidden by the first calculator. |

Weighted grade calculator This online calculator calculates the weighted average of the grades entered with weights. For comparison, the average grade is also displayed. |

Weighted grade calculator This online calculator calculates the weighted average of the grades entered with weights. For comparison, the average grade is also displayed. |