What Size Generator Do I Need?
The whole calculation in three steps — running watts, one starting surge, × 1.20 — with a worked storm-outage example, a 15-row wattage table and the five mistakes that leave people in the dark.
guides
Guides
Short, practical write-ups — no 2,000-word preamble before the answer. Fifteen guides, two subjects: what power costs, and what a policy — or a photo — says about you. Every number is reproducible with the free calculators.
direct answer
Looking for power math? Scroll to Energy guides for generator sizing and fuel burn, plus what appliances cost to run. Auditing a policy or cleaning a file? The Privacy guides cover GDPR disclosures, cookie rules and metadata removal.
energy guides
Fuel, sizing & running costs
Six guides behind the three energy calculators — the formulas, the charts, and the mistakes that cost you a tank of gas or a wrong electricity bill.
How Much Gas Does a 5000-Watt Generator Use Per Hour?
0.80 gal/h at full load, 0.60 at 75% — with the chart for every portable size, the one-line formula, and why your owner's manual quotes a different figure.
Diesel vs Gasoline vs Propane: The Cheapest Generator Fuel
Cost per hour for all four fuels side by side — plus the single break-even price (2.3× gasoline) that decides who wins at your local pump.
How Long Will a Generator Run on a Full Tank?
Runtime charts by tank size, load and generator size — and the 2-hour rule that tells you, before you buy, whether a tank is too small to trust overnight.
How to Use the Appliance Electricity Bill Calculator
A space heater, a four-appliance bill and an LED swap — the exact inputs, the arithmetic in between, and the five traps that make an estimate wrong.
Electricity Cost of Common Appliances — 2026 Data
Forty appliances ranked by monthly running cost, with typical watts, assumed hours, category totals and a CSV download for your own analysis.
Put the numbers in: size the generator, price the outage, or work out what your appliances cost to run.
Energy toolsprivacy guides
Policies, cookies, PDFs & photos
Nine guides on the paperwork that exposes you: what a privacy policy must disclose, what a cookie banner must offer, and what a PDF or a photo reveals — in its metadata and in the upload box of a free tool.
How to Merge PDFs Without Uploading Them
The three-step local merge, why the upload step is the risk, how order, encryption and memory limits behave, what merging leaves behind — and how to verify the output.
How to Remove Metadata from a PDF (Without Uploading It)
Field by field: what Author, Producer, ModDate and the XMP packet expose, how to check a file in 30 seconds, every manual removal method — and where each one quietly fails.
What Is EXIF Data? What Your Photos Reveal
Every field a photo carries — GPS coordinates, camera serial, timestamps, lens — where it lives in the file, who can read it, and what apps strip or keep.
Photo Metadata Viewer — See Every Hidden Field
Read every EXIF field on Windows, macOS, iPhone, Android or the command line — what each built-in shows, what it hides, and the zero-upload viewer that shows it all.
How to Remove EXIF Data from Photos (Without Uploading Them)
Three steps to strip EXIF, GPS and XMP losslessly — the stop-writing-GPS settings, every manual method per platform, and where each one quietly fails.
Privacy Policy Requirements: The 12-Point GDPR Checklist
Every disclosure Article 13 requires — with good-vs-bad wording examples, the CCPA extras, and the four gaps regulators fine most often.
What Must a Cookie Policy Include?
The six fields every cookie must be listed with, the pre-consent rule, reject parity — and the three banner mistakes that draw fines.
Privacy Policy Audit Checklist: 27 Checks in 10 Minutes
GDPR, CCPA and cookie checks on one page — severity-ranked, each with its legal basis and fix, plus the scoring bands the free analyzer uses.
How to Use the Privacy Policy Analyzer
Every field, tile and log line explained — plus three walkthroughs: a two-minute self-audit, a pre-launch check, and a full three-law compliance pass.
Ready to check yours? Paste a policy into the analyzer, or strip a PDF's metadata — neither file leaves your browser.
Privacy tools