Skip to main content
This is a pre-production deployment of Warehouse. Changes made here affect the production instance of PyPI (
Help us improve Python packaging - Donate today!

A set of simple math filters for Django

Project Description

django-mathfilters is a pip-installable Python 2/3 module that provides different simple math filters for Django.

Django provides an add template filter, but no corresponding subtracting, multiplying or dividing filters.

Django ticket #361 has been closed as wontfix, so I had to create an alternative that is easy to install in a new Django project.

It currently supports int, float, Decimal and cDecimal types, or any other type that can be converted to int or float.

WARNING: Note that when you have the ``cdecimal`` package installed, I assume all ``Decimal`` values that are passed to the tag are of ``cdecimal`` type. If they aren’t, weird things may happen.


$ pip install django-mathfilters

Then add mathfilters to your INSTALLED_APPS.


You need to load mathfilters at the top of your template. The script provides the following filters:

  • sub – subtraction
  • mul – multiplication
  • div – division
  • intdiv – integer (floor) division
  • abs – absolute value
  • mod – modulo
  • addition – replacement for the add filter with support for float / decimal types


{% load mathfilters %}


<h1>Basic math filters</h1>

    <li>8 + 3 = {{ 8|add:3 }}</li>

    <li>13 - 17 = {{ 13|sub:17 }}</li>

    {% with answer=42 %}
    <li>42 * 0.5 = {{ answer|mul:0.5 }}</li>
    {% endwith %}

    {% with numerator=12 denominator=3 %}
    <li>12 / 3 = {{ numerator|div:denominator }}</li>
    {% endwith %}

    <li>|-13| = {{ -13|abs }}</li>

Version Support

This module supports Python 2.6–2.7 and 3.2–3.4 as well as PyPy and PyPy3.

Supported Django versions are 1.1 through 1.8.

See for the full build matrix.


MIT License, see LICENSE file.

Release History

This version
History Node


History Node


History Node


History Node


History Node


History Node


History Node


Download Files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, Size & Hash SHA256 Hash Help File Type Python Version Upload Date
(7.6 kB) Copy SHA256 Hash SHA256
Wheel py2.py3 Apr 12, 2016
(6.0 kB) Copy SHA256 Hash SHA256
Source None Apr 12, 2016

Supported By

Elastic Elastic Search Pingdom Pingdom Monitoring Dyn Dyn DNS Sentry Sentry Error Logging CloudAMQP CloudAMQP RabbitMQ Heroku Heroku PaaS Kabu Creative Kabu Creative UX & Design Fastly Fastly CDN DigiCert DigiCert EV Certificate Google Google Cloud Servers DreamHost DreamHost Log Hosting