Universal Intelligence &
Free Web Calculators Fleet
27 institutional-grade web utilities engineered for founders, engineers, investors, and creators. Instant answers with zero sign-ups.
Developer & AI Infrastructure Tools
7 ToolsSQLite WASM Storage Quota Estimator
Calculate Origin Private File System (OPFS) limits, browser quotas, WAL overhead, and VACUUM disk safety buffers across Chrome, Safari, and Firefox.
LLM KV Cache Memory Size Calculator
Sizing GPU VRAM for Llama 3, DeepSeek, Mistral, and Qwen. Model batch size, context window length, and Grouped-Query Attention (GQA) memory overhead.
Prompt Cache Savings ROI Calculator
Calculate cloud LLM API cost savings, cache hit ROI, and latency reductions across Claude 3.5 Sonnet, GPT-4o, Gemini 2.0, and DeepSeek.
Tokens to Words Calculator
Convert AI tokens to words, characters, and reading time. Includes live text tokenizer and multi-provider API cost matrix for 2026 models.
Supabase vs Neon Compute Cost Calculator
Compare monthly Postgres cloud costs between Supabase flat-instance compute and Neon scale-to-zero serverless compute units ($0.16/CU-hr).
Resend vs SendGrid Pricing Calculator
Compare transactional email delivery costs from 1k to 10M emails. Model dedicated IPs, overage surcharges, and monthly ROI.
Bluesky Custom Domain DID DNS Generator
Generate exact DNS TXT records for Bluesky custom domain handles. Resolve AT Protocol DIDs with Cloudflare, Namecheap, and Porkbun syntax.
Corporate Tax & Legal Exemption Models
8 ToolsSection 1202 QSBS Exclusion Calculator
Calculate federal capital gains tax exclusion under IRC § 1202 QSBS. Model $10M cap vs 10x basis rule, tiers, and California state non-conformity.
Unrecaptured Section 1250 Gain Tax Calculator
Calculate IRS Section 1250 depreciation recapture tax at the statutory 25% rate, long-term capital gains, 3.8% NIIT, and state liability on real estate sales.
S-Corp Tax Savings Calculator
Compare LLC vs S-Corp tax liability. Calculate 15.3% self-employment tax savings, IRS reasonable salary guidelines, and net take-home cash flow.
De Minimis Safe Harbor Expense Calculator
Evaluate tangible business property purchases against IRS $2,500 non-AFS and $5,000 AFS limits with automated tax return election statements.
FinCEN BOI Exemption Checker
Determine if your business qualifies for any of the 23 Corporate Transparency Act Beneficial Ownership Information (BOI) reporting exemptions.
FLSA Overtime Exemption Salary Threshold Checker 2026
Verify 2026 executive, administrative, professional, and computer employee exemption salary thresholds across federal DOL and state codes.
HSA Excess Contribution Penalty Calculator
Calculate IRS 6% excise penalties on excess HSA overcontributions under IRC § 4973 and Form 5329, with Net Income Attributable (NIA) modeling.
Inherited IRA 10-Year RMD Calculator
Calculate mandatory annual distributions under final IRS SECURE 2.0 regulations. Compare tax-smoothing schedules against Year 10 lump sum.
Creator Economy & Digital Commerce
8 ToolsUGC Creator Rate Card Calculator
Build standardized UGC creator rate cards. Model deliverables, hook variations, Spark Ads whitelisting, and 30/60/90-day usage rights.
TikTok Shop Sample Request ROI Calculator
Model seller unit economics before approving creator free samples. Calculate breakeven views, fulfillment rates, and expected gross margin.
Fourthwall vs Shopify Fee Profit Calculator
Compare creator merchandise net earnings from $500 to $50,000/mo. Model platform fees, transaction cuts, and Shopify app subscription stacks.
Lemon Squeezy Rolling Reserve Fee Calculator
Calculate Merchant of Record transaction fees, 10% rolling reserve withholdings, 90-day release cycles, and working capital buffers.
Reels Sends Calculator (Creator Toolkit)
Calculate Instagram Reels Sends-to-Reach viral ratio and YouTube Hype bonus multipliers for small creators against 2026 content graphs.
Steam Revenue Split Tiered Calculator
Model Valve's tiered 30%/25%/20% cuts, player refund rates, regional sales tax/VAT, and publisher recoupment waterfalls for indie studios.
Roblox DevEx Calculator 2026
Convert Robux to USD, EUR, GBP, and CAD with the official $0.0035 rate, Tipalti payment fees, and developer exchange threshold eligibility.
Pokemon TCG Pocket Luck Calculator
Calculate pull rate percentiles, God Pack odds, and Wonder Pick stamina efficiency for Pokémon TCG Pocket card collections.
Real Estate & Hardware Utilities
4 ToolsBRRRR Real Estate Investment Calculator
Model Buy, Rehab, Rent, Refinance, Repeat cycles. Calculate all-in capital, 75% cash-out refinance recovery, monthly cash flow, and infinite returns.
State Vehicle Sales Tax & DMV Calculator
Calculate vehicle sales tax, DMV registration fees, title transfer costs, and EV surcharges across all 50 states with Out-The-Door (OTD) pricing.
Level 2 EV Charger Continuous Load Breaker Calculator
Size circuit breakers, continuous load ampacity (125% rule), wire gauge (AWG), and voltage drop for EV home charging under NEC Articles 625 and 210.
Air Fryer to Oven Time and Temperature Converter
Convert recipes between air fryers, conventional ovens, and fan-assisted convection ovens with smart °F/°C conversions and food category compensation.