{"as_of":"2026-07-17T16:52:12.396Z","inputs":{"asic":"Antminer S21 XP","units":1,"hashrate_th_per_unit":270,"power_w_per_unit":3645,"fleet_hashrate_th":270,"fleet_power_w":3645,"electricity_usd_kwh":0.06,"pool_fee_rate":0.02},"market":{"btc_price_usd":63588,"hashprice_usd_ph_day":31.69,"hashprice_btc_ph_day":0.0004984388946394124,"difficulty":127170500429035.2,"network_hashrate_eh":839.93,"source":"Self-hosted Bitcoin Core full node (Startmining)"},"steps":[{"step":1,"name":"ASIC efficiency","formula":"efficiency (J/TH) = power (W) / hashrate (TH/s)","computation":"3645 / 270 = 13.5 J/TH","result":13.5,"unit":"J/TH"},{"step":2,"name":"Daily energy consumption","formula":"energy (kWh/day) = fleet power (W) / 1000 x 24 h","computation":"3645 / 1000 x 24 = 87.48 kWh/day","result":87.48,"unit":"kWh/day"},{"step":3,"name":"Daily electricity cost","formula":"cost ($/day) = energy (kWh/day) x electricity price ($/kWh)","computation":"87.48 x 0.06 = $5.25/day","result":5.2488,"unit":"USD/day"},{"step":4,"name":"Daily gross revenue","formula":"revenue ($/day) = fleet hashrate (PH/s) x hashprice ($/PH/day)","computation":"0.27 x 31.69 = $8.56/day","result":8.5563,"unit":"USD/day"},{"step":5,"name":"Pool fee","formula":"pool fee ($/day) = gross revenue x pool fee rate","computation":"8.56 x 0.02 = $0.17/day","result":0.1711,"unit":"USD/day"},{"step":6,"name":"Daily net profit","formula":"profit ($/day) = gross revenue - pool fee - electricity cost","computation":"8.56 - 0.17 - 5.25 = $3.14/day","result":3.1364,"unit":"USD/day"},{"step":7,"name":"Breakeven electricity price","formula":"breakeven ($/kWh) = (gross revenue - pool fee) / daily energy (kWh)","computation":"(8.56 - 0.17) / 87.48 = $0.0959/kWh","result":0.0959,"unit":"USD/kWh"}],"results":{"efficiency_j_th":13.5,"daily":{"revenue_usd":8.5563,"pool_fee_usd":0.1711,"electricity_cost_usd":5.2488,"profit_usd":3.1364,"btc_mined":0.00013458},"monthly":{"revenue_usd":260.25,"electricity_cost_usd":159.65,"profit_usd":95.4,"btc_mined":0.00409343},"breakeven_electricity_usd_kwh":0.0959,"margin_pct":36.7,"profitable":true},"caveats":["Static snapshot at current difficulty and BTC price. Network difficulty historically grows, so BTC revenue per TH declines over time — use the backtest and Monte Carlo tools for multi-month projections.","Excludes CAPEX (ASIC purchase), hosting fees beyond electricity, cooling overhead, and resale value.","Monthly figures use 30.4167 days/month (730 h), not 30.","Data licence CC BY 4.0 — attribution required: Startmining (https://pro.startmining.io)."],"links":{"interactive_calculator":"https://pro.startmining.io/calculator","glossary_hashprice":"https://pro.startmining.io/glossary#hashprice","api_docs":"https://pro.startmining.io/developers"}}