
WattSized
MyElectricCalc
elec calc
EcoEnergyCalc
CampPowerCalc
CHEA NEM12 CSV Microtools
Age Calculator Free
Free, accurate calculators for home energy savings — solar payback, heat pumps, EV charging, appliance running costs and more. No signup.

AngularJS (Angular) native directives for Bootstrap.

Which is more popular?
Based on our record, Angular UI Bootstrap seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | howmuchwatts.com | angular-ui.github.io |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing HowMuchWatts and Angular UI Bootstrap.
HowMuchWatts's answer
HowMuchWatts is a free suite of 50+ home energy calculators - no signup, no ads gating the result. Every calculator shows its formula and updates live as you type, so you can see exactly how the number was reached rather than trusting a black box. It also includes an appliance power-consumption reference chart and plain-English guides (solar payback, heat pump vs gas, EV charging costs) that pair with the calculators instead of just linking out.
HowMuchWatts's answer
Most energy calculators are either buried in signup walls, ad-heavy, or give a single number with no way to check the math. HowMuchWatts is: - Free, no account needed - Transparent - the formula is shown alongside every result - Focused - 50+ calculators covering solar, heat pumps, EVs, and appliances specifically, not a generic all-purpose calculator site - Embeddable - any blog can drop a calculator into a post for free
HowMuchWatts's answer
Homeowners and renters trying to make a specific energy decision - is solar worth it, should I switch to a heat pump, what will an EV cost to charge, what is this appliance actually costing me. Secondary audience: bloggers and content sites in the home/energy space who embed the calculators in their own articles.
HowMuchWatts's answer
Built out of frustration with existing energy calculators - they were either oversimplified, buried behind email walls, or impossible to verify. HowMuchWatts started as a handful of calculators that show their formula and grew into a 50+ calculator suite covering solar, heat pumps, EVs, and everyday appliances, plus guides and a reference chart for the underlying data.
Share your experience with using HowMuchWatts and Angular UI Bootstrap. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking HowMuchWatts since Jul 2026.
I followed the tutorial on the angular bootstrap site :http://angular-ui.github.io/bootstrap/. Source: over 4 years ago
I would like to combine AngularJS and Twitter Bootstrap into a fresh web app. It seems like AngularJS directives have been written for Bootstrap. Source: over 4 years ago
I'd like to make a minor modification to a 3rd party directive (specifically Angular UI Bootstrap). I simply want to add to the scope of the pane directive:. Source: over 4 years ago
When comparing HowMuchWatts and Angular UI Bootstrap, you can also consider the following products.

Free calculator for sizing a portable power station
Compare WattSized to HowMuchWatts or Angular UI Bootstrap:

Free electrical calculators for homeowners, DIYers & electricians
Compare MyElectricCalc to HowMuchWatts or Angular UI Bootstrap:
Electriciy bill cost calculator. Electricity usage/consumption calculator.
Compare elec calc to HowMuchWatts or Angular UI Bootstrap:

20+ free calculators for energy costs, solar savings, and carbon footprint. No signup required.
Compare EcoEnergyCalc to HowMuchWatts or Angular UI Bootstrap:

Size your off-grid camping and RV power setup in minutes
Compare CampPowerCalc to HowMuchWatts or Angular UI Bootstrap:

A Series of Free Online Microtools for working with Smart Meter Data in NEM12 CSV Format: Analyze, Summarize, Visualize, Create Tables and Charts, Model Solar and Battery, and Convert CSV for use in Spreadsheets and 3rd Party Solar Design Tools.
Compare CHEA NEM12 CSV Microtools to HowMuchWatts or Angular UI Bootstrap: