---
title: "TW Bill Calculator - Reviews, Revenue and Downloads in United Kingdom | Apple App Store"
description: "Unofficial Water Bill Calculator for Thames Water Customers Planning to switch to a water meter or wondering about your water charges? This independent calculator helps you estimate your water and was"
---

# TW Bill Calculator — United Kingdom
> Estimated Bill

![TW Bill Calculator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/97/c3/67/97c367e1-51e3-0be5-8d8f-1f168aefb438/AppIcon-0-0-1x_U007epad-0-1-sRGB-85-220.png/434x0w.png)

**Developer:** [DropCode Software](https://apptail.io/developer/dropcode-software-xAhg)
**Category:** Utilities
**Rating:** 3.6/5 (90 ratings)
**Price:** Free
**Bundle ID:** com.dropcode.ios.ThamesWater-Bill-Calculator
**Store:** Apple App Store
**Country:** United Kingdom
**Version:** 2.0.1 (released 2026-03-23)
**Original Release:** 2024-04-13
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/gb/app/app/id6484275972)
**AppTail Page:** [https://apptail.io/app/tw-bill-calculator-VNIp/united-kingdom](https://apptail.io/app/tw-bill-calculator-VNIp/united-kingdom)

## TW Bill Calculator Description
Unofficial Water Bill Calculator for Thames Water Customers Planning to switch to a water meter or wondering about your water charges? This independent calculator helps you estimate your water and wastewater bills using publicly available Thames Water pricing information.

COMPREHENSIVE CALCULATION TYPES
Metered - Calculate bills based on your actual water usage
Unmetered - Estimate charges based on rateable value
Assessed - For properties without a rateable value
Bulk Supplied (RV) - For bulk supply connections
No Access - Special charges when meter access is unavailable
Other Unmetered - Alternative unmetered charge calculations
WaterSure - Social tariff for eligible customers
Sundry Charges - Additional service charges

KEY FEATURES
Detailed Breakdown - See comprehensive breakdown of all charges
Calculation History - Save and review your past calculations
Always Up-to-Date - Regular updates with current pricing
Push Notifications - Get notified about important pricing changes
Clean Interface - Simple, easy-to-use design
Ad-Free Option - Upgrade to premium for uninterrupted experience

PERFECT FOR
Homeowners considering switching to a water meter
Landlords managing multiple properties
Anyone wanting to understand their water charges
Budget planning and expense tracking

IMPORTANT DISCLAIMER
This is an unofficial, independent calculator created by a third-party developer. We are NOT affiliated with, endorsed by, or connected to Thames Water Utilities Limited. All calculations are estimates based on publicly available pricing information and may not reflect your actual bill. For official billing information, please contact Thames Water directly.

Terms of Use (EULA): 
Privacy Policy: 

## TW Bill Calculator Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/74/5f/dc/745fdce6-ef52-3ca3-daa1-fb4972d065a3/Apple_iPad_Pro_12.9_Inch_Screenshot_1.png/2048x2732.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/af/fa/c5/affac563-70f5-c7fe-38cc-4a87647f3c98/Apple_iPad_Pro_12.9_Inch_Screenshot_2.png/2048x2732.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/1e/58/99/1e5899c5-b403-5f19-a9d4-32c761ae07c9/Apple_iPad_Pro_12.9_Inch_Screenshot_3.png/2048x2732.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/73/93/5e/73935ecd-3a4a-7e31-d23a-d2747f3e919f/Apple_iPad_Pro_12.9_Inch_Screenshot_4.png/2048x2732.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5d/16/e6/5d16e6d0-fb48-9f33-b948-4ea431c5e36a/Apple_iPad_Pro_12.9_Inch_Screenshot_5.png/2048x2732.png)

## TW Bill Calculator Rating Breakdown in United Kingdom
- 5 stars: 53 (59%)
- 4 stars: 6 (7%)
- 3 stars: 3 (3%)
- 2 stars: 2 (2%)
- 1 stars: 26 (29%)







---

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