Calculators
Markup, seller fees, AI token and subscription cost, pitch, time, deck material, and local QR tools. Formulas sit next to the result.
Popular
OpenAI Token Cost Calculator
GPT-5 / 4.1 / o-series token cost in USD.
Markup Calculator
Cost to selling price with markup or margin.
Roof Pitch Calculator
Rise and run to pitch, angle, and slope.
Military Time Chart
Printable 24-hour table with 12-hour and spoken forms.
Etsy Fee Calculator
Estimate listing, transaction, and processing fees.
Square Footage Calculator
Area of a room or shape in sq ft, sq yd, sq in, and sq m.
AI cost calculators
OpenAI Token Cost Calculator
GPT-5 / 4.1 / o-series token cost in USD.
Claude Token Cost Calculator
Fable / Haiku / Sonnet / Opus token cost in USD.
Gemini Token Cost Calculator
Gemini 2.5 / 3 Flash and Pro token cost in USD.
Grok Token Cost Calculator
Grok 4.7 / 4.6 / 4.3 token cost in USD.
LLM API Cost Calculator
Generic token cost from any $/1M rates.
AI Subscription Cost Calculator
Stack AI plans, seats, monthly or yearly USD.
ChatGPT Plus Cost Calculator
ChatGPT Go / Plus / Pro monthly and yearly USD.
Claude Pro Cost Calculator
Claude Pro / Max monthly and yearly USD.
Gemini Grounding Cost Calculator
Gemini Search grounding queries after free quota.
RAG Cost Calculator
Embed + retrieve + LLM token cost in USD.
AI Agent Cost Calculator
Multi-step agent token cost per task and month.
OpenAI Realtime Voice Cost Calculator
Realtime audio tokens and GPT-Live minutes in USD.
OpenAI Image API Cost Calculator
GPT Image tokens with optional Batch half-price.
OpenAI Batch API Savings Calculator
Standard vs Batch token cost and savings %.
ChatGPT API Credits Value Calculator
Pro/Business API credits vs PAYG net cost.
LLM Prompt Caching Cost Calculator
No-cache vs cached prompt monthly cost and savings.
DeepSeek Token Cost Calculator
deepseek-flash / v4-pro cost, peak vs off-peak, cache hit/miss.
OpenAI Web Search Cost Calculator
Web search calls + content tokens vs model-only cost.
OpenAI Flex vs Fast vs Standard Cost Calculator
Standard vs Flex vs Fast monthly cost and deltas.
OpenAI Embeddings Cost Calculator
Embedding tokens with Batch and RAG ingest scenario.
Gemini Batch API Savings Calculator
Standard vs Batch vs Flex monthly cost and savings.
OpenAI Code Interpreter Cost Calculator
Container sessions by GB size and duration.
Gemini Live Voice Cost Calculator
Live audio minutes plus optional text/image.
OpenAI File Search Cost Calculator
File Search storage GB-days plus tool calls.
OpenAI Transcription Cost Calculator
Audio minutes × official per-minute rates.
OpenAI TTS Cost Calculator
TTS characters or audio tokens by model.
Gemini Image Cost Calculator
Nano Banana images by resolution and Batch.
Gemini TTS Cost Calculator
Gemini TTS seconds with promo cliff and Batch.
Gemini Embedding Cost Calculator
Embedding 2 multimodal or embedding-001 text.
Claude Batch API Savings Calculator
Claude Standard vs Batch 50% savings.
Claude Fast Mode Cost Calculator
Opus Standard vs Fast premium cost.
Claude Managed Agents Cost Calculator
Session hours + tokens + web search.
Claude Web Search Cost Calculator
Web search $10/1k + result tokens.
ElevenLabs TTS Cost Calculator
TTS chars × $/1K; optional STT hours.
Groq Token Cost Calculator
Groq tokens + optional Whisper hours.
Deepgram API Cost Calculator
Deepgram STT + TTS + Voice Agent.
Mistral Token Cost Calculator
Mistral tokens + OCR + Voxtral.
AssemblyAI Cost Calculator
AssemblyAI STT hours + add-ons + TTS.
Amazon Bedrock Cost Calculator
Bedrock Claude vs direct + Nova.
Fireworks Token Cost Calculator
Fireworks in/cached/out + Standard/Priority/Batch.
Together AI Token Cost Calculator
Together serverless tokens + optional US-only.
SambaNova Cloud Cost Calculator
SambaNova Cloud in/cached/out tokens.
Perplexity API Cost Calculator
Perplexity Search + Embeddings API cost.
Cerebras Token Cost Calculator
Cerebras Shared PayGo in/out tokens.
Kimi Token Cost Calculator
Kimi K3.1 Pro / Highspeed API USD.
OpenRouter Token Cost Calculator
OpenRouter curated models + credit fee.
Cloudflare Workers AI Cost Calculator
Workers AI tokens + Neurons footnote.
DeepInfra Token Cost Calculator
DeepInfra tokens × Standard/Priority/Flex.
Hyperbolic Token Cost Calculator
Hyperbolic Flux 11 models in/out/cached.
Novita Token Cost Calculator
Novita curated tokens + Batch 50%.
SiliconFlow Token Cost Calculator
SiliconFlow curated tokens in/cached/out.
Voyage AI Embedding Cost Calculator
Voyage embed + rerank, free tier & Batch.
AI21 Token Cost Calculator
AI21 Jamba Mini / Large tokens.
Exa API Cost Calculator
Exa search, contents & Agent cost.
Tavily API Cost Calculator
Tavily credits → cheapest plan.
Web Search API Cost Comparison
Exa vs Tavily vs Firecrawl.
Google Custom Search API Migration Cost Calculator
Google CSE shutdown → alternatives cost.
Brave Search API Cost Calculator
Brave Search & Answers cost.
Firecrawl API Cost Calculator
Firecrawl credits → cheapest plan.
SerpApi Cost Calculator
SerpApi searches → cheapest plan.
Serper API Cost Calculator
Serper credits → cheapest pack.
ScrapingBee Cost Calculator
ScrapingBee credits → cheapest plan.
ScraperAPI Cost Calculator
ScraperAPI credits → cheapest plan.
Web Scraping API Cost Comparison
ScrapingBee vs ScraperAPI vs Firecrawl.
Apify Cost Calculator
Apify CU + proxy → cheapest plan.
Bright Data Residential Proxy Cost Calculator
Bright Data residential GB → cheapest plan.
Browserbase Cost Calculator
Browserbase hours + proxy → cheapest plan.
Browserless Cost Calculator
Browserless units + proxy + captcha → cheapest plan.
Oxylabs Residential Proxy Cost Calculator
Oxylabs residential GB → cheapest plan.
Decodo Residential Proxy Cost Calculator
Decodo (ex-Smartproxy) GB → cheapest plan vs PAYG.
Webshare Proxy Cost Calculator
Webshare datacenter / ISP / residential → cheapest plan.
IPRoyal Residential Proxy Cost Calculator
IPRoyal GB → PAYG (never expires) vs subscription.
ZenRows Cost Calculator
ZenRows credits × page type → cheapest rung.
Zyte API Cost Calculator
Zyte site tier × commitment → best plan.
Scrapfly Cost Calculator
Scrapfly credits × proxy / JS → plan + overage.
ScrapingDog Cost Calculator
ScrapingDog credits per API → cheapest plan.
LlamaParse Cost Calculator
LlamaParse credits by tier → plan + $ / 1k pages.
Reducto Cost Calculator
Reducto per-endpoint pages → monthly $ + free credit.
Unstructured API Cost Calculator
Unstructured $0.015 / page after 10K free.
Document Parsing API Cost Comparison
LlamaParse vs Reducto vs Unstructured, $ / 1k pages.
Cartesia TTS Cost Calculator
Cartesia credits → plan, overage, $ / audio minute.
TTS API Cost Comparison
OpenAI vs ElevenLabs vs Gemini vs Cartesia TTS.
Vapi Cost Calculator
Vapi hosting + models + transport → $/mo, $/min.
Retell AI Cost Calculator
Retell LLM + infra + TTS + telephony → $/min.
Bland AI Cost Calculator
Bland talk + transfer + plan fee → $/mo, $/min, breakeven.
Voice AI Agent Platform Cost Comparison
Vapi vs Retell vs Bland → $/min and $/mo.
Gladia STT Cost Calculator
Gladia Solaria hours → € and $ per month.
Gemini Omni Flash Video Cost Calculator
Omni Flash 1.1: Gemini API vs Runway $/clip & $/mo.
Runway API Cost Calculator
Runway Dev model $/s → per clip, per month, recipes.
AI Video Generation API Cost Comparison
20+ video models ranked by $ per finished clip.
Recraft API Cost Calculator
Recraft raster/vector $/image → monthly + API units.
fal.ai Cost Calculator
fal image $/MP or $/image → per kept image & month.
AI Image Generation API Cost Comparison
20+ image models ranked by $ per kept image.
Modal GPU Cost Calculator
Modal per-second GPU + CPU + memory → $/request & month.
RunPod GPU Cost Calculator
RunPod pod $/h × hours ÷ utilization vs serverless.
GPU Cloud Cost Comparison
Modal vs RunPod vs Lambda monthly GPU cost + break-even.
Pinecone Cost Calculator
Pinecone storage + WU + RU vs $50 minimum → monthly cost.
Upstash Vector Cost Calculator
Upstash Vector PAYG vs Fixed $60 + break-even.
Vector Database Cost Comparison
Pinecone vs Upstash Vector monthly cost for one workload.
E2B Sandbox Cost Calculator
E2B per-second vCPU + RAM + plan base → monthly cost.
Daytona Sandbox Cost Calculator
Daytona per-second vCPU + RAM + storage + GPU → monthly cost.
AI Agent Sandbox Cost Comparison
E2B vs Daytona vs LangSmith sandbox cost for one workload.
Langfuse Cost Calculator
Langfuse units (traces + observations + scores) → monthly cost.
Braintrust Cost Calculator
Braintrust GB processed + scores + retention → monthly cost.
LLM Observability Cost Comparison
Langfuse vs Braintrust vs LangSmith vs Helicone for one workload.
Google Cloud Translation Cost Calculator
Google Translate API chars × languages → monthly cost.
Amazon Translate Cost Calculator
Amazon Translate chars × languages → monthly cost.
Machine Translation API Cost Comparison
Google vs Amazon translation API cost for one workload.
Amazon SES Cost Calculator
Amazon SES emails × size → monthly cost and $/1k.
Resend Cost Calculator
Resend emails → cheapest plan, overage and monthly cost.
Mailgun Cost Calculator
Mailgun emails → plan, overage, validations and monthly $.
Postmark Cost Calculator
Postmark emails → cheapest plan, overage and monthly $.
Transactional Email API Cost Comparison
Amazon SES vs Resend vs Mailgun vs Postmark for one volume.
Twilio Verify Cost Calculator
Twilio Verify OTP volume → monthly cost and $ per signup.
Twilio SMS Cost Calculator (US)
Twilio US SMS segments + carrier fees → monthly cost.
SMS API Cost Comparison (US)
Twilio vs Telnyx vs Plivo US SMS and OTP cost.
Clerk Cost Calculator
Clerk MRU, SSO and add-ons → monthly bill.
WorkOS Cost Calculator
WorkOS AuthKit MAU + SSO connections → monthly bill.
Auth Provider Cost Comparison
Clerk vs WorkOS vs Supabase Auth monthly cost.
Stripe Fee Calculator
Stripe fees per order + reverse “what to charge”.
PayPal Fee Calculator
PayPal fees per order + reverse “what to charge”.
Payment Processing Fee Comparison
Stripe vs PayPal vs Paddle vs Lemon Squeezy fees.
Cloudflare R2 Cost Calculator
R2 Standard / IA storage + Class A/B → monthly $.
Amazon S3 Cost Calculator
S3 Standard us-east-1 storage + requests + egress.
Object Storage Cost Comparison
R2 vs S3 vs B2 storage + egress monthly bill.
Bunny CDN Cost Calculator
Bunny Standard / Volume bandwidth → monthly $.
Cloudflare CDN Cost Calculator
Cloudflare Free/Pro/Business × zones → monthly $.
AWS CloudFront Cost Calculator
CloudFront PAYG DTO + requests → monthly $.
CDN Bandwidth Cost Comparison
Bunny vs Cloudflare vs CloudFront vs Fastly monthly CDN $.
Cloudflare Workers Cost Calculator
Workers Paid requests + CPU-ms → monthly $.
AWS Lambda Cost Calculator
Lambda Event us-east-1 x86 requests + GB-s → monthly $.
Vercel Functions Cost Calculator
Vercel Fluid CPU + memory + invocations → monthly $.
Serverless Compute Cost Comparison
Workers vs Lambda vs Vercel Fluid monthly compute $.
Neon Postgres Cost Calculator
Neon CU-hours + storage → monthly $.
Supabase Cost Calculator
Supabase Pro plan + compute + disk → monthly $.
PlanetScale Postgres Cost Calculator
PlanetScale Postgres EBS SKU → monthly $.
Serverless Postgres Cost Comparison
Neon vs Supabase vs PlanetScale Postgres monthly $.
Upstash Redis Cost Calculator
Upstash Redis PAYG / Fixed → monthly $.
AWS ElastiCache Cost Calculator
ElastiCache Serverless Valkey → $/hr and $/mo.
Cloudflare KV Cost Calculator
Cloudflare KV Paid overages → monthly $.
Redis / Cache Cost Comparison
Upstash vs ElastiCache vs Cloudflare KV monthly $.
Amazon SQS Cost Calculator
Amazon SQS Standard / FIFO requests → monthly $.
Cloudflare Queues Cost Calculator
Cloudflare Queues operations → monthly $.
Google Cloud Tasks Cost Calculator
Cloud Tasks create + delivery ops → monthly $.
Message Queue Cost Comparison
SQS vs Cloudflare Queues vs Cloud Tasks monthly $.
PostHog Cost Calculator
PostHog events + replays + exceptions → monthly $.
Sentry Cost Calculator
Sentry errors + replays → monthly $.
Mixpanel Cost Calculator
Mixpanel Growth events step → monthly $.
Product Analytics Cost Comparison
PostHog vs Mixpanel vs Sentry monthly $.
Railway Cost Calculator
Railway vCPU + RAM + egress → monthly bill.
Render Cost Calculator
Render instances + Postgres + bandwidth → monthly $.
Fly.io Cost Calculator
Fly.io Machines + MPG + egress → monthly $.
Netlify Cost Calculator
Netlify credits → plan + packs monthly $.
Heroku Cost Calculator
Heroku dynos + Postgres + KV → monthly $.
PaaS Hosting Cost Comparison
Railway · Render · Fly · Netlify · Heroku monthly $.
DigitalOcean Cost Calculator
DO Droplets + backups + egress → monthly $.
Vultr Cost Calculator
Vultr Cloud Compute → monthly $.
Linode (Akamai Cloud) Cost Calculator
Linode Shared / Nanode → monthly $.
VPS Hosting Cost Comparison
DO · Vultr · Linode · Lightsail VPS monthly $.
AWS Lightsail Cost Calculator
Lightsail instance + storage + transfer → monthly $.
LaunchDarkly Cost Calculator
LaunchDarkly SC + MAU + AI runs → monthly $.
Statsig Cost Calculator
Statsig metered events → monthly $.
Flagsmith Cost Calculator
Flagsmith requests + seats → monthly $.
Feature Flags Cost Comparison
LaunchDarkly vs Statsig vs Flagsmith monthly $.
GitHub Actions Cost Calculator
GitHub Actions minutes → billable overage $.
CircleCI Cost Calculator
CircleCI credits + packs → monthly $.
CI/CD Cost Comparison
GitHub Actions vs CircleCI monthly $.
MongoDB Atlas Cost Calculator
Atlas M0 · Flex · Dedicated → monthly $.
Algolia Cost Calculator
Algolia Free · Grow · Grow+ → monthly $.
Seller & Fees
Markup Calculator
Cost to selling price with markup or margin.
Etsy Fee Calculator
Estimate listing, transaction, and processing fees.
Wi‑Fi QR Code Generator
SSID and password to a scannable Wi‑Fi QR.
YAML to JSON
Paste YAML, get pretty JSON.
vCard QR Code Generator
Name and contact fields to a vCard QR.
Military Time Chart
Printable 24-hour table with 12-hour and spoken forms.
Military Time Converter
24-hour ↔ 12-hour with AM/PM.
Construction & DIY
Square Footage Calculator
Area of a room or shape in sq ft, sq yd, sq in, and sq m.
Gravel Calculator
Cubic yards, tons, bags and cost for a gravel area.
Pipe Volume Calculator
Gallons, liters and cubic feet a length of pipe holds.
Roof Pitch Calculator
Rise and run to pitch, angle, and slope.
Stair Calculator
Risers, treads, run, stringer length and angle from total rise.
Board Foot Calculator
Board feet, cost and cubic feet for any board size.
Paint Calculator
Gallons, quarts and cost of paint for a room.
Lumber Calculator
Studs, joists, plates, board feet and cost for framing.
Roofing Calculator
Roof area, squares, shingle bundles and cost.
Fence Calculator
Posts, rails, pickets, concrete and cost.
Asphalt Calculator
Tons, cubic yards and cost for an asphalt area.
Tile Calculator
Tiles, boxes and cost for a room or wall.
Rebar Calculator
Bars, total length, weight and stock bars for a slab.
Decking Calculator
Boards, joists, rim, posts, footings and screws for a deck.
Drywall Calculator
Drywall sheets, joint compound, tape and screws for a room.
Sod Calculator
Sod rolls, pallets, area and topsoil for a lawn.
Insulation Calculator
Thickness for a target R-value, plus boards, batts and bags.
Retaining Wall Calculator
Retaining wall blocks, caps, base and drainage gravel.
Cubic Yard Calculator
Length × width × depth to cu yd, cu ft, m³ and tons.
Pool Volume Calculator
Gallons, liters and fill time for rectangle, round, oval and kidney pools.
Wallpaper Calculator
Strips, drop length and rolls to buy.
Concrete Block Calculator
Wall size to blocks, courses and mortar.
Carpet Calculator
Square yards, roll length, seams and cost.
Flooring Calculator
Boxes, planks, underlayment and cost.
Topsoil Calculator
Cubic yards, tons and bags of soil.
Sand Calculator
Paver base, sandbox and leveling sand.
Rafter Length Calculator
Rafter length, rise, angle and count.
Deck Material Calculator
Estimate decking boards and joists.
Deck Board Calculator
Estimate decking boards for a deck footprint.
Concrete Calculator Bags
Bags of concrete for a slab from L × W × thickness.
Electrical & Mechanical
Voltage Drop Calculator
Volts lost, percent drop and minimum wire size for a cable run.
Ohms Law Calculator
Find volts, amps, ohms and watts from any two values.
Wire Size Calculator
Minimum AWG for amps, length and voltage drop.
Amp Calculator
Watts, kW, kVA or HP to amps, and amps back to power.
GPM Calculator
Gallons per minute from volume and time or pipe size.
BTU Calculator
Room cooling BTU/h, tons, kW and a converter.
Horsepower Calculator
Convert HP, kW and BTU/h, and find HP from torque and RPM.
Torque Calculator
Torque from force, arm, power and RPM, with unit conversion.