Don’t Just Calculate. Test the Decision.
Free simulators and calculators that show what a decision actually costs, earns or saves — using transparent, source-verified assumptions.
Choose a decision
Car, business, creator or technology.
Change the assumptions
Income, fees, usage, price, volume, term.
See the outcome
Cost, profit, savings, cash flow or break-even.
Must Know Now
Important changes people are searching for right now, with the checker or calculator you need.
Gemini Skills vs Gems: What Changes?
See what changes as Google moves from Gems to Skills and what to check before the transition.
Updated Oct 4, 2026ETIAS 2026: Do You Need It?
Check whether your passport and destination need ETIAS, what it costs and when it starts.
Updated Oct 4, 2026UK Airline Child Seating Rules
Check what applies to your airline and your child’s age before you fly.
Updated Oct 4, 2026RBA Interest Rate Australia
See the latest cash rate and how a change could affect your repayments.
Updated Oct 4, 2026U.S. Mortgage Rate Payment Calculator
Work out your monthly payment at today’s rate and see how purchasing power changes.
Updated Oct 4, 2026Australia Card Surcharge Ban 2026
See what the card surcharge ban means for what you pay or charge, and when it applies.
Updated Oct 4, 2026Challenges & Simulators
Change your assumptions and watch how the decision actually plays out over time — before you commit to it in real life.
YouTube Income Simulator
Simulate 12 months of content decisions and see where earnings land.
House Affordability Challenge
Model what you can realistically afford, not just what you qualify for.
Instagram Growth & Earnings Simulator
Simulate follower and engagement growth against real earning scenarios.
Auto Loan Refinance Challenge
See whether refinancing actually saves you money over the term.
Twitter / X Income Simulator
Simulate impressions and payout tiers under the ad-revenue-share program.
Business Line of Credit Challenge
Model borrowing costs and repayment scenarios for your business.
Wedding Budget Simulation
Test different spending and savings assumptions before you commit.
Know What You Actually Keep
A $1,000 sale isn’t necessarily $1,000 of income. Run your own numbers before pricing, selling or launching.
What actually lands in your account from a $1,000 customer payment
Platform fees, payment processing, marketplace costs and acquisition expenses can all change the result. UIG’s tools let you model those variables before you price, sell or launch — not just read a static answer.
Practical Calculators and Tools
Pick your lane. Each area links straight to its calculators.
Platform and Payment Fees
What Stripe, PayPal, Patreon, Etsy and eBay actually take before the money reaches you.
Seller, Business and Tax Tools
Seller economics, marketing math and the day-to-day tax and ops tools that run a business.
Working Days and Timesheets
Count business days and add up hours for payroll, deadlines and timesheets in your country.
Creator Economics
YouTube, TikTok, Twitch, Kick, Instagram, X, UGC and sponsorship tools.
AI Pricing and Costs
AI API costs, subscriptions and agent workflows, compared side by side.
Cloud and Data Platform Costs
Compare what Fabric, Snowflake, Databricks, BigQuery, Azure and dbt Cloud really cost.
Free Learning Resources
In-depth, practitioner-written guides that go beyond what a calculator can show.
Microsoft Fabric, Power BI & data engineering — plus more, as UIG adds new learning tracks
Architecture patterns, migrations, DAX, troubleshooting, certification prep and interview questions — written from real implementation scenarios, not marketing copy.
Browse Learning Resources →Tools Built for Real Decisions
Current data
Rates and pricing are checked against primary sources where available.
Interactive
Change inputs instead of reading a static, one-size-fits-all answer.
Transparent
Every calculator shows its assumptions, methodology and limitations.
Free
No account required for any core tool on the site.
What are you trying to figure out?
Fee schedules, pricing figures and platform details referenced across this site are based on official documentation at the time of writing and are updated regularly — always verify current rates at the official platform before a pricing, selling or purchasing decision. UIG is an independent publication, not affiliated with, endorsed by or sponsored by Stripe, PayPal, Etsy, Amazon, Patreon, Microsoft, Databricks, Snowflake or any other platform/vendor mentioned.