Bitcoin Mining ROI Calculator UK: Profit and Payback in £

Bitcoin Mining ROI Calculator

Work out what a Bitcoin mining machine could earn on your power, your return on investment, how long it takes to pay for itself, and what changes after the 2028 halving. All figures in pounds. Based on the worksheet in the book Turn Spare Power into Bitcoin: A UK Beginner's Guide to Bitcoin Mining with Solar, Wind and Biogas (available from Amazon).

1Your machines

Hashrate per machine

TH/s

Power per machine

Price per machine

Number of machines

Site set-up cost (total)Electrics, airflow, racking, network, noise kits. Enter 0 if already in place.

2Your power

Share of the year the machines runDrag to how much of the year your power can keep the machines running. For solar, wind or biogas, your inverter, turbine or engine records will show this. On grid power, use 100%.

90%

0%50%100%

What each kWh could otherwise earn or cost0p for power lost to an export cap or curtailment; your export rate if you would otherwise sell it; your tariff if you buy it.

p/kWh

3Bitcoin network (live)

Bitcoin price

Network difficulty

Average fees per block

BTC

Block subsidy

BTC

Fetching today's bitcoin price and difficulty…

4Other costs and income

Pool fee

Running costs per yearFilters, fans, internet, insurance

Value of heat you'll use, per yearFuel you no longer buy, for example for grain drying or heating a building

Expected next halving

year-month

Net profit per year

–

ROI, year one

–

First 12 months’ net profit as a share of the outlay

Payback

–

Revenue per kWh

–

Also your break-even power price

Efficiency

–

Lower is better

Earnings at today's figures

	Per day	Per month	Per year
Bitcoin mined (BTC)
Revenue
Value of power used
Net profit

What if things change?

Scenario	Net per year	Revenue per kWh

Bitcoin's price and network difficulty change all the time. Plan on today's figures or worse, not the best month you've seen.

How this is worked out

Bitcoin mined per day = hashrate × 86,400 seconds × (block subsidy + average fees) ÷ (difficulty × 2³²). Revenue is that bitcoin at today's price, less the pool fee, for the share of the year the machines run. Revenue per kWh is revenue divided by the electricity used. Return on investment is the net profit over the first 12 months divided by the total outlay (machines plus site set-up). Payback counts month by month from today. Both halve the block subsidy from the halving date. Results assume today's price and difficulty stay the same.

Estimates only, not financial advice. Mining income varies with bitcoin's price and network difficulty, and bitcoin you keep can rise or fall in value. Live data from mempool.space. Machines, site builds and free pool set-up support from Blockchain Mining Solutions.